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468697139946 = 23272531402653
BaseRepresentation
bin1101101001000001000…
…01101100101011101010
31122210210022100122212100
412310200201230223222
530134342431434241
6555152210154230
745601515645600
oct6644041545352
91583708318770
10468697139946
11170856353422
1276a05882976
1335275b88c89
1418983b51870
15c2d29519b6
hex6d2086caea

468697139946 has 36 divisors (see below), whose sum is σ = 1181308099842. Its totient is φ = 133913468304.

The previous prime is 468697139927. The next prime is 468697139951. The reversal of 468697139946 is 649931796864.

468697139946 is a `hidden beast` number, since 468 + 6 + 9 + 71 + 3 + 9 + 94 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 468418416921 + 278723025 = 684411^2 + 16695^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 265700445 + ... + 265702208.

Almost surely, 2468697139946 is an apocalyptic number.

468697139946 is an abundant number, since it is smaller than the sum of its proper divisors (712610959896).

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

468697139946 is a wasteful number, since it uses less digits than its factorization.

468697139946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531402675 (or 531402665 counting only the distinct ones).

The product of its digits is 423263232, while the sum is 72.

The spelling of 468697139946 in words is "four hundred sixty-eight billion, six hundred ninety-seven million, one hundred thirty-nine thousand, nine hundred forty-six".

Divisors: 1 2 3 6 7 9 14 18 21 42 49 63 98 126 147 294 441 882 531402653 1062805306 1594207959 3188415918 3719818571 4782623877 7439637142 9565247754 11159455713 22318911426 26038729997 33478367139 52077459994 66956734278 78116189991 156232379982 234348569973 468697139946