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72461052 = 22322012807
BaseRepresentation
bin1000101000110…
…10101011111100
312001100101212200
410110122223330
5122022223202
611105031500
71536623466
oct424325374
9161311780
1072461052
11379a2074
1220325590
1312020a81
1498a3136
156564e1c
hex451aafc

72461052 has 18 divisors (see below), whose sum is σ = 183165528. Its totient is φ = 24153672.

The previous prime is 72461047. The next prime is 72461057. The reversal of 72461052 is 25016427.

It is an interprime number because it is at equal distance from previous prime (72461047) and next prime (72461057).

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72461057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1006368 + ... + 1006439.

Almost surely, 272461052 is an apocalyptic number.

It is an amenable number.

72461052 is an abundant number, since it is smaller than the sum of its proper divisors (110704476).

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

72461052 is a wasteful number, since it uses less digits than its factorization.

72461052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012817 (or 2012812 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 72461052 is about 8512.4057704036. The cubic root of 72461052 is about 416.9028636988.

Adding to 72461052 its reverse (25016427), we get a palindrome (97477479).

It can be divided in two parts, 724 and 61052, that added together give a triangular number (61776 = T351).

The spelling of 72461052 in words is "seventy-two million, four hundred sixty-one thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 2012807 4025614 6038421 8051228 12076842 18115263 24153684 36230526 72461052