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72052006 = 21341257263
BaseRepresentation
bin1000100101101…
…10110100100110
312000120121202211
410102312310212
5121421131011
611052154034
71533301105
oct422666446
9160517684
1072052006
1137742814
122016891a
1311c09830
1497d803c
1564d3b21
hex44b6d26

72052006 has 32 divisors (see below), whose sum is σ = 120149568. Its totient is φ = 32194560.

The previous prime is 72051989. The next prime is 72052021. The reversal of 72052006 is 60025027.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273831 + ... + 274093.

It is an arithmetic number, because the mean of its divisors is an integer number (3754674).

Almost surely, 272052006 is an apocalyptic number.

72052006 is a deficient number, since it is larger than the sum of its proper divisors (48097562).

72052006 is a wasteful number, since it uses less digits than its factorization.

72052006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 72052006 is about 8488.3453040036. The cubic root of 72052006 is about 416.1169042439.

The spelling of 72052006 in words is "seventy-two million, fifty-two thousand, six".

Divisors: 1 2 13 26 41 82 257 263 514 526 533 1066 3341 3419 6682 6838 10537 10783 21074 21566 67591 135182 136981 140179 273962 280358 878683 1757366 2771231 5542462 36026003 72052006