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7642968 = 233318457
BaseRepresentation
bin11101001001111101011000
3112101022011220
4131021331120
53424033333
6431452040
7121651464
oct35117530
915338156
107642968
114350303
122687020
131777a88
14102d4a4
15a0e8b3
hex749f58

7642968 has 16 divisors (see below), whose sum is σ = 19107480. Its totient is φ = 2547648.

The previous prime is 7642963. The next prime is 7643017. The reversal of 7642968 is 8692467.

It is a d-powerful number, because it can be written as 7 + 63 + 410 + 217 + 97 + 68 + 83 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7642963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159205 + ... + 159252.

Almost surely, 27642968 is an apocalyptic number.

It is an amenable number.

7642968 is an abundant number, since it is smaller than the sum of its proper divisors (11464512).

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

7642968 is a wasteful number, since it uses less digits than its factorization.

7642968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318466 (or 318462 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 7642968 is about 2764.5918324411. The cubic root of 7642968 is about 196.9793411131.

The spelling of 7642968 in words is "seven million, six hundred forty-two thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 318457 636914 955371 1273828 1910742 2547656 3821484 7642968