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14872131640 = 235593626987
BaseRepresentation
bin11011101100111001…
…01011100000111000
31102101110112120021101
431312130223200320
5220424231203030
610455425221144
71034355014242
oct156634534070
942343476241
1014872131640
116341a26693
122a707917b4
1315301c88c2
14a1125b092
155c09a77ca
hex37672b838

14872131640 has 32 divisors (see below), whose sum is σ = 33518778480. Its totient is φ = 5938811392.

The previous prime is 14872131601. The next prime is 14872131691. The reversal of 14872131640 is 4613127841.

It is a self number, because there is not a number n which added to its sum of digits gives 14872131640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289774 + ... + 337213.

Almost surely, 214872131640 is an apocalyptic number.

14872131640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14872131640 is an abundant number, since it is smaller than the sum of its proper divisors (18646646840).

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

14872131640 is a wasteful number, since it uses less digits than its factorization.

14872131640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627591 (or 627587 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 14872131640 in words is "fourteen billion, eight hundred seventy-two million, one hundred thirty-one thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 593 1186 2372 2965 4744 5930 11860 23720 626987 1253974 2507948 3134935 5015896 6269870 12539740 25079480 371803291 743606582 1487213164 1859016455 2974426328 3718032910 7436065820 14872131640