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102894140 = 2255144707
BaseRepresentation
bin1100010001000…
…00101000111100
321011121120020002
412020200220330
5202320103030
614113213432
72356404626
oct610405074
9234546202
10102894140
1153098988
122a561278
1318417c0b
14d945c16
159077245
hex6220a3c

102894140 has 12 divisors (see below), whose sum is σ = 216077736. Its totient is φ = 41157648.

The previous prime is 102894131. The next prime is 102894163. The reversal of 102894140 is 41498201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2572334 + ... + 2572373.

It is an arithmetic number, because the mean of its divisors is an integer number (18006478).

Almost surely, 2102894140 is an apocalyptic number.

102894140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102894140 is an abundant number, since it is smaller than the sum of its proper divisors (113183596).

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

102894140 is a wasteful number, since it uses less digits than its factorization.

102894140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5144716 (or 5144714 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 102894140 is about 10143.6748764932. The cubic root of 102894140 is about 468.5941694758.

The spelling of 102894140 in words is "one hundred two million, eight hundred ninety-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 5144707 10289414 20578828 25723535 51447070 102894140