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47994962560 = 2754313113313
BaseRepresentation
bin101100101100101110…
…010000001010000000
311120212211222201022221
4230230232100022000
51241243202300220
634014254340424
73316234310356
oct545456201200
9146784881287
1047994962560
11193999a5816
1293754ba714
1346ab55083c
1424743237d6
1513ad8399aa
hexb2cb90280

47994962560 has 128 divisors (see below), whose sum is σ = 118311399360. Its totient is φ = 18606981120.

The previous prime is 47994962501. The next prime is 47994962579. The reversal of 47994962560 is 6526949974.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×479949625602 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3598464 + ... + 3611776.

Almost surely, 247994962560 is an apocalyptic number.

47994962560 is a gapful number since it is divisible by the number (40) 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 47994962560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59155699680).

47994962560 is an abundant number, since it is smaller than the sum of its proper divisors (70316436800).

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

47994962560 is a wasteful number, since it uses less digits than its factorization.

47994962560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13506 (or 13494 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 61.

The spelling of 47994962560 in words is "forty-seven billion, nine hundred ninety-four million, nine hundred sixty-two thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 43 64 80 86 128 131 160 172 215 262 320 344 430 524 640 655 688 860 1048 1310 1376 1720 2096 2620 2752 3440 4192 5240 5504 5633 6880 8384 10480 11266 13313 13760 16768 20960 22532 26626 27520 28165 41920 45064 53252 56330 66565 83840 90128 106504 112660 133130 180256 213008 225320 266260 360512 426016 450640 532520 572459 721024 852032 901280 1065040 1144918 1704064 1744003 1802560 2130080 2289836 2862295 3488006 3605120 4260160 4579672 5724590 6976012 8520320 8720015 9159344 11449180 13952024 17440030 18318688 22898360 27904048 34880060 36637376 45796720 55808096 69760120 73274752 74992129 91593440 111616192 139520240 149984258 183186880 223232384 279040480 299968516 366373760 374960645 558080960 599937032 749921290 1116161920 1199874064 1499842580 2399748128 2999685160 4799496256 5999370320 9598992512 11998740640 23997481280 47994962560