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30870486432 = 2532987110859
BaseRepresentation
bin11100110000000001…
…100011110110100000
32221200102021012021100
4130300001203312200
51001210321031212
622103125354400
72141666543112
oct346001436640
987612235240
1030870486432
1112101648405
125b96568a00
132bac827026
1416cbcc13b2
15c0a275bdc
hex730063da0

30870486432 has 72 divisors (see below), whose sum is σ = 87804924480. Its totient is φ = 10288172160.

The previous prime is 30870486419. The next prime is 30870486487. The reversal of 30870486432 is 23468407803.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2837419 + ... + 2848277.

It is an arithmetic number, because the mean of its divisors is an integer number (1219512840).

Almost surely, 230870486432 is an apocalyptic number.

30870486432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30870486432 is an abundant number, since it is smaller than the sum of its proper divisors (56934438048).

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

30870486432 is a wasteful number, since it uses less digits than its factorization.

30870486432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20746 (or 20735 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 30870486432 in words is "thirty billion, eight hundred seventy million, four hundred eighty-six thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 9871 10859 19742 21718 29613 32577 39484 43436 59226 65154 78968 86872 88839 97731 118452 130308 157936 173744 177678 195462 236904 260616 315872 347488 355356 390924 473808 521232 710712 781848 947616 1042464 1421424 1563696 2842848 3127392 107189189 214378378 321567567 428756756 643135134 857513512 964702701 1286270268 1715027024 1929405402 2572540536 3430054048 3858810804 5145081072 7717621608 10290162144 15435243216 30870486432