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47904048 = 2437372
BaseRepresentation
bin1011011010111…
…1010100110000
310100010210000000
42312233110300
544230412143
64430430000
71121114643
oct266572460
9110123000
1047904048
112504a025
1214062300
139c033ba
14650da5a
154313bd3
hex2daf530

47904048 has 120 divisors (see below), whose sum is σ = 143063760. Its totient is φ = 15536448.

The previous prime is 47904023. The next prime is 47904049. The reversal of 47904048 is 84040974.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (47904049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1294686 + ... + 1294722.

It is an arithmetic number, because the mean of its divisors is an integer number (1192198).

Almost surely, 247904048 is an apocalyptic number.

47904048 is a gapful number since it is divisible by the number (48) 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 47904048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71531880).

47904048 is an abundant number, since it is smaller than the sum of its proper divisors (95159712).

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

47904048 is an frugal number, since it uses more digits than its factorization.

47904048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 47904048 is about 6921.2750270452. The cubic root of 47904048 is about 363.1817954223.

The spelling of 47904048 in words is "forty-seven million, nine hundred four thousand, forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 37 48 54 72 74 81 108 111 144 148 162 216 222 243 296 324 333 432 444 486 592 648 666 729 888 972 999 1296 1332 1369 1458 1776 1944 1998 2187 2664 2738 2916 2997 3888 3996 4107 4374 5328 5476 5832 5994 7992 8214 8748 8991 10952 11664 11988 12321 15984 16428 17496 17982 21904 23976 24642 26973 32856 34992 35964 36963 47952 49284 53946 65712 71928 73926 80919 98568 107892 110889 143856 147852 161838 197136 215784 221778 295704 323676 332667 431568 443556 591408 647352 665334 887112 998001 1294704 1330668 1774224 1996002 2661336 2994003 3992004 5322672 5988006 7984008 11976012 15968016 23952024 47904048