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10987240900 = 2252143376673
BaseRepresentation
bin10100011101110001…
…11111110111000100
31001100201102200001011
422032320333313010
5140000213202100
65014130412004
7536163002206
oct121670776704
931321380034
1010987240900
114729013789
122167731004
1310613aac9c
1476330c776
154448bdbba
hex28ee3fdc4

10987240900 has 36 divisors (see below), whose sum is σ = 23859261972. Its totient is φ = 4391772160.

The previous prime is 10987240897. The next prime is 10987240907. The reversal of 10987240900 is 904278901.

It can be written as a sum of positive squares in 6 ways, for example, as 619113924 + 10368126976 = 24882^2 + 101824^2 .

It is not an unprimeable number, because it can be changed into a prime (10987240907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104964 + ... + 181636.

It is an arithmetic number, because the mean of its divisors is an integer number (662757277).

Almost surely, 210987240900 is an apocalyptic number.

10987240900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10987240900 is an abundant number, since it is smaller than the sum of its proper divisors (12872021072).

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

10987240900 is a wasteful number, since it uses less digits than its factorization.

10987240900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78120 (or 78113 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 10987240900 in words is "ten billion, nine hundred eighty-seven million, two hundred forty thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1433 2866 5732 7165 14330 28660 35825 71650 76673 143300 153346 306692 383365 766730 1533460 1916825 3833650 7667300 109872409 219744818 439489636 549362045 1098724090 2197448180 2746810225 5493620450 10987240900