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72424968 = 23371139191
BaseRepresentation
bin1000101000100…
…01111000001000
312001021120101020
410110101320020
5122020044333
611104152440
71536413340
oct424217010
9161246336
1072424968
1137977a50
1220308720
131200a515
149893d20
1565593b3
hex4511e08

72424968 has 64 divisors (see below), whose sum is σ = 225745920. Its totient is φ = 18811200.

The previous prime is 72424951. The next prime is 72424969. The reversal of 72424968 is 86942427.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (72424969) 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, 17748 + ... + 21443.

It is an arithmetic number, because the mean of its divisors is an integer number (3527280).

Almost surely, 272424968 is an apocalyptic number.

It is an amenable number.

72424968 is an abundant number, since it is smaller than the sum of its proper divisors (153320952).

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

72424968 is a wasteful number, since it uses less digits than its factorization.

72424968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39218 (or 39214 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 72424968 is about 8510.2860116450. The cubic root of 72424968 is about 416.8336494091.

The spelling of 72424968 in words is "seventy-two million, four hundred twenty-four thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 11 12 14 21 22 24 28 33 42 44 56 66 77 84 88 132 154 168 231 264 308 462 616 924 1848 39191 78382 117573 156764 235146 274337 313528 431101 470292 548674 823011 862202 940584 1097348 1293303 1646022 1724404 2194696 2586606 3017707 3292044 3448808 5173212 6035414 6584088 9053121 10346424 12070828 18106242 24141656 36212484 72424968