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1230703880 = 235713732083
BaseRepresentation
bin100100101011011…
…0000110100001000
310011202210020100012
41021112300310020
510010030011010
6322042131052
742332544650
oct11126606410
93152706305
101230703880
1158177804a
122a41b0a88
13167c84963
14b9643360
15730a3005
hex495b0d08

1230703880 has 64 divisors (see below), whose sum is σ = 3187866240. Its totient is φ = 418862592.

The previous prime is 1230703871. The next prime is 1230703913. The reversal of 1230703880 is 883070321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22319 + ... + 54401.

It is an arithmetic number, because the mean of its divisors is an integer number (49810410).

Almost surely, 21230703880 is an apocalyptic number.

1230703880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230703880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1593933120).

1230703880 is an abundant number, since it is smaller than the sum of its proper divisors (1957162360).

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

1230703880 is a wasteful number, since it uses less digits than its factorization.

1230703880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32238 (or 32234 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1230703880 is about 35081.3893681536. The cubic root of 1230703880 is about 1071.6456117685.

The spelling of 1230703880 in words is "one billion, two hundred thirty million, seven hundred three thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 137 140 274 280 548 685 959 1096 1370 1918 2740 3836 4795 5480 7672 9590 19180 32083 38360 64166 128332 160415 224581 256664 320830 449162 641660 898324 1122905 1283320 1796648 2245810 4395371 4491620 8790742 8983240 17581484 21976855 30767597 35162968 43953710 61535194 87907420 123070388 153837985 175814840 246140776 307675970 615351940 1230703880