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72034901 = 1134431439
BaseRepresentation
bin1000100101100…
…10101001010101
312000112202022022
410102302221111
5121420104101
611051542525
71533200201
oct422625125
9160482268
1072034901
1137730984
122015aa45
1311c01b03
1497d1b01
1564cda1b
hex44b2a55

72034901 has 8 divisors (see below), whose sum is σ = 72887040. Its totient is φ = 71186752.

The previous prime is 72034891. The next prime is 72034903. The reversal of 72034901 is 10943027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-72034901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72034903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49340 + ... + 50778.

It is an arithmetic number, because the mean of its divisors is an integer number (9110880).

Almost surely, 272034901 is an apocalyptic number.

It is an amenable number.

72034901 is a deficient number, since it is larger than the sum of its proper divisors (852139).

72034901 is a wasteful number, since it uses less digits than its factorization.

72034901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 72034901 is about 8487.3376862241. The cubic root of 72034901 is about 416.0839732016.

Adding to 72034901 its reverse (10943027), we get a palindrome (82977928).

The spelling of 72034901 in words is "seventy-two million, thirty-four thousand, nine hundred one".

Divisors: 1 113 443 1439 50059 162607 637477 72034901