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72034038 = 2324001891
BaseRepresentation
bin1000100101100…
…10011011110110
312000112201010100
410102302123312
5121420042123
611051534530
71533164526
oct422623366
9160481110
1072034038
113773026a
122015a446
1311c015bb
1497d1686
1564cd643
hex44b26f6

72034038 has 12 divisors (see below), whose sum is σ = 156073788. Its totient is φ = 24011340.

The previous prime is 72034037. The next prime is 72034063. The reversal of 72034038 is 83043027.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72034031) 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, 2000928 + ... + 2000963.

It is an arithmetic number, because the mean of its divisors is an integer number (13006149).

Almost surely, 272034038 is an apocalyptic number.

72034038 is an abundant number, since it is smaller than the sum of its proper divisors (84039750).

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

72034038 is a wasteful number, since it uses less digits than its factorization.

72034038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001899 (or 4001896 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 72034038 is about 8487.2868456298. The cubic root of 72034038 is about 416.0823115908.

The spelling of 72034038 in words is "seventy-two million, thirty-four thousand, thirty-eight".

Divisors: 1 2 3 6 9 18 4001891 8003782 12005673 24011346 36017019 72034038