Search a number
-
+
6161785968 = 243132759589
BaseRepresentation
bin1011011110100010…
…10110010001110000
3120220102111011022010
411233101112101300
5100104404122333
62455232242520
7305460213402
oct55721262160
916812434263
106161785968
112682192aa8
12123b6a0440
13772763400
144264c4b72
15260e44563
hex16f456470

6161785968 has 60 divisors (see below), whose sum is σ = 17236616280. Its totient is φ = 1895931648.

The previous prime is 6161785967. The next prime is 6161785969. The reversal of 6161785968 is 8695871616.

It is an interprime number because it is at equal distance from previous prime (6161785967) and next prime (6161785969).

It is a super-3 number, since 3×61617859683 (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6161785967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 371683 + ... + 387906.

It is an arithmetic number, because the mean of its divisors is an integer number (287276938).

Almost surely, 26161785968 is an apocalyptic number.

It is an amenable number.

6161785968 is an abundant number, since it is smaller than the sum of its proper divisors (11074830312).

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

6161785968 is a wasteful number, since it uses less digits than its factorization.

6161785968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759626 (or 759607 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 57.

The square root of 6161785968 is about 78497.0443265223. The cubic root of 6161785968 is about 1833.3084335865.

The spelling of 6161785968 in words is "six billion, one hundred sixty-one million, seven hundred eighty-five thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 78 104 156 169 208 312 338 507 624 676 1014 1352 2028 2704 4056 8112 759589 1519178 2278767 3038356 4557534 6076712 9115068 9874657 12153424 18230136 19749314 29623971 36460272 39498628 59247942 78997256 118495884 128370541 157994512 236991768 256741082 385111623 473983536 513482164 770223246 1026964328 1540446492 2053928656 3080892984 6161785968