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72070174 = 211171311471
BaseRepresentation
bin1000100101110…
…11010000011110
312000121112200201
410102323100132
5121422221144
611052414114
71533405061
oct422732036
9160545621
1072070174
1137755430
122017733a
1311c14b97
1498008d8
1564d91d4
hex44bb41e

72070174 has 32 divisors (see below), whose sum is σ = 125908992. Its totient is φ = 30576000.

The previous prime is 72070151. The next prime is 72070177. The reversal of 72070174 is 47107027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72070177) by changing a digit.

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, 48259 + ... + 49729.

It is an arithmetic number, because the mean of its divisors is an integer number (3934656).

Almost surely, 272070174 is an apocalyptic number.

72070174 is a deficient number, since it is larger than the sum of its proper divisors (53838818).

72070174 is a wasteful number, since it uses less digits than its factorization.

72070174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 72070174 is about 8489.4154097912. The cubic root of 72070174 is about 416.1518760973.

The spelling of 72070174 in words is "seventy-two million, seventy thousand, one hundred seventy-four".

Divisors: 1 2 11 17 22 34 131 187 262 374 1441 1471 2227 2882 2942 4454 16181 24497 25007 32362 48994 50014 192701 275077 385402 550154 2119711 3275917 4239422 6551834 36035087 72070174