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10261120540 = 2251146641457
BaseRepresentation
bin10011000111001110…
…00100011000011100
3222111010002221011111
421203213010120130
5132003321324130
64414111231404
7512165041216
oct114347043034
928433087144
1010261120540
114396153810
121ba4518564
13c76b24778
146d4ad55b6
15400c8c02a
hex2639c461c

10261120540 has 24 divisors (see below), whose sum is σ = 23507294832. Its totient is φ = 3731316480.

The previous prime is 10261120531. The next prime is 10261120549. The reversal of 10261120540 is 4502116201.

It is an interprime number because it is at equal distance from previous prime (10261120531) and next prime (10261120549).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10261120549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23320509 + ... + 23320948.

It is an arithmetic number, because the mean of its divisors is an integer number (979470618).

Almost surely, 210261120540 is an apocalyptic number.

10261120540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10261120540 is an abundant number, since it is smaller than the sum of its proper divisors (13246174292).

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

10261120540 is a wasteful number, since it uses less digits than its factorization.

10261120540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46641477 (or 46641475 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 10261120540 its reverse (4502116201), we get a palindrome (14763236741).

The spelling of 10261120540 in words is "ten billion, two hundred sixty-one million, one hundred twenty thousand, five hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 46641457 93282914 186565828 233207285 466414570 513056027 932829140 1026112054 2052224108 2565280135 5130560270 10261120540