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73072164290 = 25311491679473
BaseRepresentation
bin100010000001101110…
…0001011110111000010
320222121112011120000012
41010003130023313002
52144122433224130
653322514024522
75164540101566
oct1040334136702
9228545146005
1073072164290
1128a98371624
12121b3878142
136b76a77848
143772a456a6
151d7a1ab995
hex110370bdc2

73072164290 has 64 divisors (see below), whose sum is σ = 137517004800. Its totient is φ = 27924971520.

The previous prime is 73072164289. The next prime is 73072164299. The reversal of 73072164290 is 9246127037.

It is not an unprimeable number, because it can be changed into a prime (73072164299) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7708994 + ... + 7718466.

It is an arithmetic number, because the mean of its divisors is an integer number (2148703200).

Almost surely, 273072164290 is an apocalyptic number.

73072164290 is a deficient number, since it is larger than the sum of its proper divisors (64444840510).

73072164290 is a wasteful number, since it uses less digits than its factorization.

73072164290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9827.

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 73072164290 in words is "seventy-three billion, seventy-two million, one hundred sixty-four thousand, two hundred ninety".

Divisors: 1 2 5 10 31 62 149 155 167 298 310 334 745 835 1490 1670 4619 5177 9238 9473 10354 18946 23095 24883 25885 46190 47365 49766 51770 94730 124415 248830 293663 587326 771373 1411477 1468315 1542746 1581991 2822954 2936630 3163982 3856865 7057385 7713730 7909955 14114770 15819910 43755787 49041721 87511574 98083442 218778935 235716659 245208605 437557870 471433318 490417210 1178583295 2357166590 7307216429 14614432858 36536082145 73072164290