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72268401 = 3227106121
BaseRepresentation
bin1000100111010…
…11101001110001
312000222121121110
410103223221301
5122000042101
611100543533
71535162022
oct423535161
9160877543
1072268401
1137880357
1220251ba9
1311c8418a
149852c49
156527cd6
hex44eba71

72268401 has 8 divisors (see below), whose sum is σ = 96783264. Its totient is φ = 47966240.

The previous prime is 72268387. The next prime is 72268421. The reversal of 72268401 is 10486227.

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

It is a cyclic number.

It is not a de Polignac number, because 72268401 - 29 = 72267889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72268421) 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, 52380 + ... + 53741.

It is an arithmetic number, because the mean of its divisors is an integer number (12097908).

Almost surely, 272268401 is an apocalyptic number.

It is an amenable number.

72268401 is a deficient number, since it is larger than the sum of its proper divisors (24514863).

72268401 is a wasteful number, since it uses less digits than its factorization.

72268401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106351.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 72268401 is about 8501.0823428549. The cubic root of 72268401 is about 416.5330648637.

The spelling of 72268401 in words is "seventy-two million, two hundred sixty-eight thousand, four hundred one".

Divisors: 1 3 227 681 106121 318363 24089467 72268401