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67922994680 = 2356725344401
BaseRepresentation
bin111111010000100001…
…101010010111111000
320111022200002122012122
4333100201222113320
52103101241312210
651111533300412
74623123633362
oct772041522770
9214280078178
1067922994680
112689583a252
12111b7334708
13653604b018
143404c33d32
151b780dbb55
hexfd086a5f8

67922994680 has 32 divisors (see below), whose sum is σ = 155107740240. Its totient is φ = 26763686400.

The previous prime is 67922994677. The next prime is 67922994719. The reversal of 67922994680 is 8649922976.

It is a super-2 number, since 2×679229946802 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12669521 + ... + 12674880.

Almost surely, 267922994680 is an apocalyptic number.

It is an amenable number.

67922994680 is an abundant number, since it is smaller than the sum of its proper divisors (87184745560).

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

67922994680 is a wasteful number, since it uses less digits than its factorization.

67922994680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25344479 (or 25344475 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 62.

The spelling of 67922994680 in words is "sixty-seven billion, nine hundred twenty-two million, nine hundred ninety-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 67 134 268 335 536 670 1340 2680 25344401 50688802 101377604 126722005 202755208 253444010 506888020 1013776040 1698074867 3396149734 6792299468 8490374335 13584598936 16980748670 33961497340 67922994680