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672406108 = 221115281957
BaseRepresentation
bin101000000101000…
…001101001011100
31201212020202202221
4220011001221130
52334113443413
6150415555124
722443233443
oct5005015134
91655222687
10672406108
11315612730
1216922baa4
13a93ca64a
1465433d5a
153e07168d
hex28141a5c

672406108 has 12 divisors (see below), whose sum is σ = 1283684472. Its totient is φ = 305639120.

The previous prime is 672406099. The next prime is 672406129. The reversal of 672406108 is 801604276.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7640935 + ... + 7641022.

It is an arithmetic number, because the mean of its divisors is an integer number (106973706).

Almost surely, 2672406108 is an apocalyptic number.

It is an amenable number.

672406108 is a deficient number, since it is larger than the sum of its proper divisors (611278364).

672406108 is a wasteful number, since it uses less digits than its factorization.

672406108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15281972 (or 15281970 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 672406108 is about 25930.7945886739. The cubic root of 672406108 is about 876.0802366683.

The spelling of 672406108 in words is "six hundred seventy-two million, four hundred six thousand, one hundred eight".

Divisors: 1 2 4 11 22 44 15281957 30563914 61127828 168101527 336203054 672406108