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73430957688 = 23311416784087
BaseRepresentation
bin100010001100011010…
…0110111111001111000
321000112112022011000120
41010120310313321320
52200341311121223
653422252133240
75206454561514
oct1043064677170
9230475264016
1073430957688
11291619523a0
1212293a67220
136c031bc32a
1437a8561144
151d9b930be3
hex1118d37e78

73430957688 has 64 divisors (see below), whose sum is σ = 205150821120. Its totient is φ = 21709075200.

The previous prime is 73430957687. The next prime is 73430957689. The reversal of 73430957688 is 88675903437.

It is an interprime number because it is at equal distance from previous prime (73430957687) and next prime (73430957689).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73430957687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3381220 + ... + 3402867.

It is an arithmetic number, because the mean of its divisors is an integer number (3205481580).

Almost surely, 273430957688 is an apocalyptic number.

It is an amenable number.

73430957688 is an abundant number, since it is smaller than the sum of its proper divisors (131719863432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73430957688 is a wasteful number, since it uses less digits than its factorization.

73430957688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784148 (or 6784144 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 60.

The spelling of 73430957688 in words is "seventy-three billion, four hundred thirty million, nine hundred fifty-seven thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 41 44 66 82 88 123 132 164 246 264 328 451 492 902 984 1353 1804 2706 3608 5412 10824 6784087 13568174 20352261 27136348 40704522 54272696 74624957 81409044 149249914 162818088 223874871 278147567 298499828 447749742 556295134 596999656 834442701 895499484 1112590268 1668885402 1790998968 2225180536 3059623237 3337770804 6119246474 6675541608 9178869711 12238492948 18357739422 24476985896 36715478844 73430957688