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38005112832 = 219373331
BaseRepresentation
bin100011011001010010…
…000000000000000000
310122002122022202202120
4203121102000000000
51110313302102312
625243113244240
72513542062141
oct433122000000
9118078282676
1038005112832
1115132993865
127447a03680
1337789a845b
141ba7683ac8
15ec67d428c
hex8d9480000

38005112832 has 160 divisors (see below), whose sum is σ = 103045562400. Its totient is φ = 12457082880.

The previous prime is 38005112753. The next prime is 38005112833. The reversal of 38005112832 is 23821150083.

It is a junction number, because it is equal to n+sod(n) for n = 38005112793 and 38005112802.

It is not an unprimeable number, because it can be changed into a prime (38005112833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114818907 + ... + 114819237.

It is an arithmetic number, because the mean of its divisors is an integer number (644034765).

Almost surely, 238005112832 is an apocalyptic number.

38005112832 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38005112832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51522781200).

38005112832 is an abundant number, since it is smaller than the sum of its proper divisors (65040449568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38005112832 is an frugal number, since it uses more digits than its factorization.

38005112832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 38005112832 in words is "thirty-eight billion, five million, one hundred twelve thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 73 96 128 146 192 219 256 292 331 384 438 512 584 662 768 876 993 1024 1168 1324 1536 1752 1986 2048 2336 2648 3072 3504 3972 4096 4672 5296 6144 7008 7944 8192 9344 10592 12288 14016 15888 16384 18688 21184 24163 24576 28032 31776 32768 37376 42368 48326 49152 56064 63552 65536 72489 74752 84736 96652 98304 112128 127104 131072 144978 149504 169472 193304 196608 224256 254208 262144 289956 299008 338944 386608 393216 448512 508416 524288 579912 598016 677888 773216 786432 897024 1016832 1159824 1196032 1355776 1546432 1572864 1794048 2033664 2319648 2392064 2711552 3092864 3588096 4067328 4639296 4784128 5423104 6185728 7176192 8134656 9278592 9568256 10846208 12371456 14352384 16269312 18557184 19136512 21692416 24742912 28704768 32538624 37114368 38273024 43384832 49485824 57409536 65077248 74228736 86769664 98971648 114819072 130154496 148457472 173539328 197943296 260308992 296914944 395886592 520617984 593829888 791773184 1187659776 1583546368 2375319552 3167092736 4750639104 6334185472 9501278208 12668370944 19002556416 38005112832