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72233952 = 2537176323
BaseRepresentation
bin1000100111000…
…11001111100000
312000220212100120
410103203033200
5121442441302
611100120240
71534656420
oct423431740
9160825316
1072233952
113785748a
1220236080
1311c715ab
149844480
15651c9bc
hex44e33e0

72233952 has 96 divisors (see below), whose sum is σ = 229485312. Its totient is φ = 19421184.

The previous prime is 72233947. The next prime is 72233957. The reversal of 72233952 is 25933227.

It is an interprime number because it is at equal distance from previous prime (72233947) and next prime (72233957).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72233957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8263 + ... + 14585.

It is an arithmetic number, because the mean of its divisors is an integer number (2390472).

Almost surely, 272233952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72233952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114742656).

72233952 is an abundant number, since it is smaller than the sum of its proper divisors (157251360).

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

72233952 is a wasteful number, since it uses less digits than its factorization.

72233952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6360 (or 6352 counting only the distinct ones).

The product of its digits is 22680, while the sum is 33.

The square root of 72233952 is about 8499.0559475744. The cubic root of 72233952 is about 416.4668698280.

It can be divided in two parts, 7223 and 3952, that added together give a triangular number (11175 = T149).

The spelling of 72233952 in words is "seventy-two million, two hundred thirty-three thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 17 21 24 28 32 34 42 48 51 56 68 84 96 102 112 119 136 168 204 224 238 272 336 357 408 476 544 672 714 816 952 1428 1632 1904 2856 3808 5712 6323 11424 12646 18969 25292 37938 44261 50584 75876 88522 101168 107491 132783 151752 177044 202336 214982 265566 303504 322473 354088 429964 531132 607008 644946 708176 752437 859928 1062264 1289892 1416352 1504874 1719856 2124528 2257311 2579784 3009748 3439712 4249056 4514622 5159568 6019496 9029244 10319136 12038992 18058488 24077984 36116976 72233952