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102552940 = 2257732521
BaseRepresentation
bin1100001110011…
…01010101101100
321010222020012001
412013031111230
5202223143230
614102022044
72353454110
oct607152554
9233866161
10102552940
11529855a6
122a417924
1318328819
14d897740
15900b0ca
hex61cd56c

102552940 has 24 divisors (see below), whose sum is σ = 246127392. Its totient is φ = 35160960.

The previous prime is 102552913. The next prime is 102552941. The reversal of 102552940 is 49255201.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 102552899 and 102552908.

It is not an unprimeable number, because it can be changed into a prime (102552941) 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, 366121 + ... + 366400.

It is an arithmetic number, because the mean of its divisors is an integer number (10255308).

Almost surely, 2102552940 is an apocalyptic number.

102552940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102552940 is an abundant number, since it is smaller than the sum of its proper divisors (143574452).

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

102552940 is a wasteful number, since it uses less digits than its factorization.

102552940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732537 (or 732535 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 102552940 is about 10126.8425483958. The cubic root of 102552940 is about 468.0756385404.

The spelling of 102552940 in words is "one hundred two million, five hundred fifty-two thousand, nine hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 732521 1465042 2930084 3662605 5127647 7325210 10255294 14650420 20510588 25638235 51276470 102552940