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140488956 = 22323902471
BaseRepresentation
bin10000101111110…
…11000011111100
3100210100120121200
420113323003330
5241431121311
621535055500
73324064536
oct1027730374
9323316550
10140488956
1172336483
123b071590
132314ba7a
1414930856
15c501556
hex85fb0fc

140488956 has 18 divisors (see below), whose sum is σ = 355124952. Its totient is φ = 46829640.

The previous prime is 140488951. The next prime is 140488961. The reversal of 140488956 is 659884041.

It is an interprime number because it is at equal distance from previous prime (140488951) and next prime (140488961).

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140488951) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1951200 + ... + 1951271.

It is an arithmetic number, because the mean of its divisors is an integer number (19729164).

Almost surely, 2140488956 is an apocalyptic number.

It is an amenable number.

140488956 is an abundant number, since it is smaller than the sum of its proper divisors (214635996).

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

140488956 is a wasteful number, since it uses less digits than its factorization.

140488956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3902481 (or 3902476 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 140488956 is about 11852.8037189519. The cubic root of 140488956 is about 519.8532080726.

The spelling of 140488956 in words is "one hundred forty million, four hundred eighty-eight thousand, nine hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 36 3902471 7804942 11707413 15609884 23414826 35122239 46829652 70244478 140488956