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70641445914 = 23213833637187
BaseRepresentation
bin100000111001010001…
…1101110110000011010
320202100010100021020200
41001302203232300122
52124133202232124
652241403203030
75050363245234
oct1016243566032
9222303307220
1070641445914
1127a60288966
1211835816476
13687a2c4c50
1435c1cab254
151c86ab8bc9
hex10728eec1a

70641445914 has 48 divisors (see below), whose sum is σ = 166815990432. Its totient is φ = 21473946144.

The previous prime is 70641445909. The next prime is 70641445921. The reversal of 70641445914 is 41954414607.

It is a self number, because there is not a number n which added to its sum of digits gives 70641445914.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1799172 + ... + 1838015.

It is an arithmetic number, because the mean of its divisors is an integer number (3475333134).

Almost surely, 270641445914 is an apocalyptic number.

70641445914 is an abundant number, since it is smaller than the sum of its proper divisors (96174544518).

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

70641445914 is a wasteful number, since it uses less digits than its factorization.

70641445914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3637291 (or 3637288 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 70641445914 in words is "seventy billion, six hundred forty-one million, four hundred forty-five thousand, nine hundred fourteen".

Divisors: 1 2 3 6 9 13 18 26 39 78 83 117 166 234 249 498 747 1079 1494 2158 3237 6474 9711 19422 3637187 7274374 10911561 21823122 32734683 47283431 65469366 94566862 141850293 283700586 301886521 425550879 603773042 851101758 905659563 1811319126 2716978689 3924524773 5433957378 7849049546 11773574319 23547148638 35320722957 70641445914