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103287140 = 22511469487
BaseRepresentation
bin1100010100000…
…00100101100100
321012100112022122
412022000211210
5202420142030
614125445112
72362632455
oct612004544
9235315278
10103287140
1153337180
122a710798
1318524a68
14da0912c
1591038e5
hex6280964

103287140 has 24 divisors (see below), whose sum is σ = 236621952. Its totient is φ = 37558880.

The previous prime is 103287139. The next prime is 103287167. The reversal of 103287140 is 41782301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234524 + ... + 234963.

It is an arithmetic number, because the mean of its divisors is an integer number (9859248).

Almost surely, 2103287140 is an apocalyptic number.

103287140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103287140 is an abundant number, since it is smaller than the sum of its proper divisors (133334812).

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

103287140 is a wasteful number, since it uses less digits than its factorization.

103287140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469507 (or 469505 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 103287140 is about 10163.0280920600. The cubic root of 103287140 is about 469.1900036802.

The spelling of 103287140 in words is "one hundred three million, two hundred eighty-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 469487 938974 1877948 2347435 4694870 5164357 9389740 10328714 20657428 25821785 51643570 103287140