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72325476 = 223219412579
BaseRepresentation
bin1000100111110…
…01100101100100
312001002111220100
410103321211210
5122003403401
611102104100
71535520306
oct423714544
9161074810
1072325476
113790a223
122027b030
1311ca4152
149869976
156539b86
hex44f9964

72325476 has 72 divisors (see below), whose sum is σ = 197215200. Its totient is φ = 22273920.

The previous prime is 72325471. The next prime is 72325483. The reversal of 72325476 is 67452327.

It is a happy number.

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

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 72325476.

It is not an unprimeable number, because it can be changed into a prime (72325471) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 26755 + ... + 29333.

It is an arithmetic number, because the mean of its divisors is an integer number (2739100).

Almost surely, 272325476 is an apocalyptic number.

72325476 is a gapful number since it is divisible by the number (76) 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 72325476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98607600).

72325476 is an abundant number, since it is smaller than the sum of its proper divisors (124889724).

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

72325476 is a wasteful number, since it uses less digits than its factorization.

72325476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649 (or 2644 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 72325476 is about 8504.4386058105. The cubic root of 72325476 is about 416.6426903181.

The spelling of 72325476 in words is "seventy-two million, three hundred twenty-five thousand, four hundred seventy-six".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 41 57 76 82 114 123 164 171 228 246 342 369 492 684 738 779 1476 1558 2337 2579 3116 4674 5158 7011 7737 9348 10316 14022 15474 23211 28044 30948 46422 49001 92844 98002 105739 147003 196004 211478 294006 317217 422956 441009 588012 634434 882018 951651 1268868 1764036 1903302 2009041 3806604 4018082 6027123 8036164 12054246 18081369 24108492 36162738 72325476