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72113832 = 23327236221
BaseRepresentation
bin1000100110001…
…01111010101000
312000200202120200
410103011322220
5121430120312
611053352200
71533646260
oct423057250
9160622520
1072113832
113778520a
1220198660
1311c2ba0b
1498127a0
1564e70dc
hex44c5ea8

72113832 has 96 divisors (see below), whose sum is σ = 232951680. Its totient is φ = 19704960.

The previous prime is 72113831. The next prime is 72113861. The reversal of 72113832 is 23831127.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 72113796 and 72113805.

It is not an unprimeable number, because it can be changed into a prime (72113831) 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, 8482 + ... + 14702.

It is an arithmetic number, because the mean of its divisors is an integer number (2426580).

Almost surely, 272113832 is an apocalyptic number.

72113832 is a gapful number since it is divisible by the number (72) 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 72113832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116475840).

72113832 is an abundant number, since it is smaller than the sum of its proper divisors (160837848).

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

72113832 is a wasteful number, since it uses less digits than its factorization.

72113832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6263 (or 6256 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 72113832 is about 8491.9863400738. The cubic root of 72113832 is about 416.2358900068.

Adding to 72113832 its reverse (23831127), we get a palindrome (95944959).

The spelling of 72113832 in words is "seventy-two million, one hundred thirteen thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 23 24 28 36 42 46 56 63 69 72 84 92 126 138 161 168 184 207 252 276 322 414 483 504 552 644 828 966 1288 1449 1656 1932 2898 3864 5796 6221 11592 12442 18663 24884 37326 43547 49768 55989 74652 87094 111978 130641 143083 149304 174188 223956 261282 286166 348376 391923 429249 447912 522564 572332 783846 858498 1001581 1045128 1144664 1287747 1567692 1716996 2003162 2575494 3004743 3135384 3433992 4006324 5150988 6009486 8012648 9014229 10301976 12018972 18028458 24037944 36056916 72113832