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1087013240 = 23528879413
BaseRepresentation
bin100000011001010…
…1000000101111000
32210202101222211122
41000302220011320
54211233410430
6255510244412
735636313545
oct10062500570
92722358748
101087013240
11508655155
12264056708
13144284801
14a451bbcc
156566cee5
hex40ca8178

1087013240 has 32 divisors (see below), whose sum is σ = 2446886880. Its totient is φ = 434608512.

The previous prime is 1087013231. The next prime is 1087013243. The reversal of 1087013240 is 423107801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087013243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110774 + ... + 120186.

It is an arithmetic number, because the mean of its divisors is an integer number (76465215).

Almost surely, 21087013240 is an apocalyptic number.

1087013240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1087013240 is an abundant number, since it is smaller than the sum of its proper divisors (1359873640).

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

1087013240 is a wasteful number, since it uses less digits than its factorization.

1087013240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12311 (or 12307 counting only the distinct ones).

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

The square root of 1087013240 is about 32969.8838335836. The cubic root of 1087013240 is about 1028.2016062073.

The spelling of 1087013240 in words is "one billion, eighty-seven million, thirteen thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 2887 5774 9413 11548 14435 18826 23096 28870 37652 47065 57740 75304 94130 115480 188260 376520 27175331 54350662 108701324 135876655 217402648 271753310 543506620 1087013240