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115072668 = 223212725169
BaseRepresentation
bin1101101101111…
…01111010011100
322000112022000200
412312331322130
5213424311133
615230223500
72565046554
oct666757234
9260468020
10115072668
1159a56887
1232654b90
131aac0249
14113d6164
15a180913
hex6dbde9c

115072668 has 36 divisors (see below), whose sum is σ = 293180160. Its totient is φ = 38054016.

The previous prime is 115072663. The next prime is 115072673. The reversal of 115072668 is 866270511.

It is an interprime number because it is at equal distance from previous prime (115072663) and next prime (115072673).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115072663) 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, 8013 + ... + 17156.

Almost surely, 2115072668 is an apocalyptic number.

115072668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

115072668 is an abundant number, since it is smaller than the sum of its proper divisors (178107492).

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

115072668 is a wasteful number, since it uses less digits than its factorization.

115072668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25306 (or 25301 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 115072668 is about 10727.1929226615. The cubic root of 115072668 is about 486.3968206506.

The spelling of 115072668 in words is "one hundred fifteen million, seventy-two thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 127 254 381 508 762 1143 1524 2286 4572 25169 50338 75507 100676 151014 226521 302028 453042 906084 3196463 6392926 9589389 12785852 19178778 28768167 38357556 57536334 115072668