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130605740 = 22527124097
BaseRepresentation
bin1111100100011…
…10001010101100
3100002202110101122
413302032022230
5231413340430
620543200112
73144062516
oct762161254
9302673348
10130605740
11677a6031
12378a6038
132109b405
14134babb6
15b6ecee5
hex7c8e2ac

130605740 has 24 divisors (see below), whose sum is σ = 275295552. Its totient is φ = 52047360.

The previous prime is 130605737. The next prime is 130605743. The reversal of 130605740 is 47506031.

It is an interprime number because it is at equal distance from previous prime (130605737) and next prime (130605743).

It is not an unprimeable number, because it can be changed into a prime (130605743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6629 + ... + 17468.

It is an arithmetic number, because the mean of its divisors is an integer number (11470648).

Almost surely, 2130605740 is an apocalyptic number.

130605740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130605740 is an abundant number, since it is smaller than the sum of its proper divisors (144689812).

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

130605740 is a wasteful number, since it uses less digits than its factorization.

130605740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24377 (or 24375 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 130605740 is about 11428.2868357423. The cubic root of 130605740 is about 507.3652922095.

The spelling of 130605740 in words is "one hundred thirty million, six hundred five thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 271 542 1084 1355 2710 5420 24097 48194 96388 120485 240970 481940 6530287 13060574 26121148 32651435 65302870 130605740