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245232340520 = 2356130808513
BaseRepresentation
bin1110010001100011111…
…1001000111000101000
3212102222122220122211112
43210120333020320220
513004213434344040
6304354100045452
723501041333616
oct3443077107050
9772878818745
10245232340520
1195003299102
123b63b993888
131a1823cb9cb
14bc255506b6
1565a44a9365
hex3918fc8e28

245232340520 has 16 divisors (see below), whose sum is σ = 551772766260. Its totient is φ = 98092936192.

The previous prime is 245232340511. The next prime is 245232340547. The reversal of 245232340520 is 25043232542.

It can be written as a sum of positive squares in 2 ways, for example, as 226638836356 + 18593504164 = 476066^2 + 136358^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3065404217 + ... + 3065404296.

Almost surely, 2245232340520 is an apocalyptic number.

245232340520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245232340520 is an abundant number, since it is smaller than the sum of its proper divisors (306540425740).

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

245232340520 is a wasteful number, since it uses less digits than its factorization.

245232340520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6130808524 (or 6130808520 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

The spelling of 245232340520 in words is "two hundred forty-five billion, two hundred thirty-two million, three hundred forty thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 6130808513 12261617026 24523234052 30654042565 49046468104 61308085130 122616170260 245232340520