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72541052 = 2289203767
BaseRepresentation
bin1000101001011…
…10001101111100
312001111110121122
410110232031330
5122032303202
611110450112
71540405643
oct424561574
9161443548
1072541052
1137a47191
1220363938
131204b2cc
1498c435a
15657d9a2
hex452e37c

72541052 has 12 divisors (see below), whose sum is σ = 128373840. Its totient is φ = 35862816.

The previous prime is 72541033. The next prime is 72541081. The reversal of 72541052 is 25014527.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101528 + ... + 102239.

It is an arithmetic number, because the mean of its divisors is an integer number (10697820).

Almost surely, 272541052 is an apocalyptic number.

It is an amenable number.

72541052 is a deficient number, since it is larger than the sum of its proper divisors (55832788).

72541052 is a wasteful number, since it uses less digits than its factorization.

72541052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203860 (or 203858 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 72541052 is about 8517.1034982557. The cubic root of 72541052 is about 417.0562332751.

Adding to 72541052 its reverse (25014527), we get a palindrome (97555579).

The spelling of 72541052 in words is "seventy-two million, five hundred forty-one thousand, fifty-two".

Divisors: 1 2 4 89 178 356 203767 407534 815068 18135263 36270526 72541052