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308743000940 = 225114729859091
BaseRepresentation
bin1000111111000101000…
…01000101001101101100
31002111220211102111022202
410133202201011031230
520024301202012230
6353500134001032
731206640131113
oct4374241051554
91074824374282
10308743000940
11109a34414310
124ba054a6178
132316428884a
1410d2c378c7a
158070022a45
hex47e284536c

308743000940 has 48 divisors (see below), whose sum is σ = 722351153664. Its totient is φ = 109881451200.

The previous prime is 308743000919. The next prime is 308743000957. The reversal of 308743000940 is 49000347803.

It is a junction number, because it is equal to n+sod(n) for n = 308743000894 and 308743000903.

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, 14919206 + ... + 14939885.

It is an arithmetic number, because the mean of its divisors is an integer number (15048982368).

Almost surely, 2308743000940 is an apocalyptic number.

It is an amenable number.

308743000940 is an abundant number, since it is smaller than the sum of its proper divisors (413608152724).

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

308743000940 is a wasteful number, since it uses less digits than its factorization.

308743000940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29859158 (or 29859156 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 308743000940 in words is "three hundred eight billion, seven hundred forty-three million, nine hundred forty", and thus it is an aban number.

Divisors: 1 2 4 5 10 11 20 22 44 47 55 94 110 188 220 235 470 517 940 1034 2068 2585 5170 10340 29859091 59718182 119436364 149295455 298590910 328450001 597181820 656900002 1313800004 1403377277 1642250005 2806754554 3284500010 5613509108 6569000020 7016886385 14033772770 15437150047 28067545540 30874300094 61748600188 77185750235 154371500470 308743000940