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6161320452 = 2237138153113
BaseRepresentation
bin1011011110011111…
…00100101000000100
3120220101121111201210
411233033210220010
5100104244223302
62455214251420
7305453234250
oct55717445004
916811544653
106161320452
1126819a5281
12123b4b6b70
1377262c561
14426403260
15260da166c
hex16f3e4a04

6161320452 has 48 divisors (see below), whose sum is σ = 16442394752. Its totient is φ = 1759069440.

The previous prime is 6161320447. The next prime is 6161320457. The reversal of 6161320452 is 2540231616.

It is an interprime number because it is at equal distance from previous prime (6161320447) and next prime (6161320457).

It is not an unprimeable number, because it can be changed into a prime (6161320457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89448 + ... + 142560.

Almost surely, 26161320452 is an apocalyptic number.

It is an amenable number.

6161320452 is an abundant number, since it is smaller than the sum of its proper divisors (10281074300).

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

6161320452 is a wasteful number, since it uses less digits than its factorization.

6161320452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54508 (or 54506 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 6161320452 is about 78494.0790888077. The cubic root of 6161320452 is about 1833.2622642937.

The spelling of 6161320452 in words is "six billion, one hundred sixty-one million, three hundred twenty thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1381 2762 4143 5524 8286 9667 16572 19334 29001 38668 53113 58002 106226 116004 159339 212452 318678 371791 637356 743582 1115373 1487164 2230746 4461492 73349053 146698106 220047159 293396212 440094318 513443371 880188636 1026886742 1540330113 2053773484 3080660226 6161320452