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70069639668 = 22371943903283
BaseRepresentation
bin100000101000001111…
…0011101100111110100
320200212021101111112120
41001100132131213310
52122000311432133
652104535315540
75030251052520
oct1012036354764
9220767344476
1070069639668
1127797537416
12116b621bbb0
1367b89bb162
143569d82d80
151c517b9ab3
hex105079d9f4

70069639668 has 48 divisors (see below), whose sum is σ = 196686712320. Its totient is φ = 18966217824.

The previous prime is 70069639603. The next prime is 70069639693. The reversal of 70069639668 is 86693696007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21950046 + ... + 21953237.

It is an arithmetic number, because the mean of its divisors is an integer number (4097639840).

Almost surely, 270069639668 is an apocalyptic number.

It is an amenable number.

70069639668 is an abundant number, since it is smaller than the sum of its proper divisors (126617072652).

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

70069639668 is a wasteful number, since it uses less digits than its factorization.

70069639668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43903316 (or 43903314 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 60.

The spelling of 70069639668 in words is "seventy billion, sixty-nine million, six hundred thirty-nine thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 19 21 28 38 42 57 76 84 114 133 228 266 399 532 798 1596 43903283 87806566 131709849 175613132 263419698 307322981 526839396 614645962 834162377 921968943 1229291924 1668324754 1843937886 2502487131 3336649508 3687875772 5004974262 5839136639 10009948524 11678273278 17517409917 23356546556 35034819834 70069639668