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10121131340 = 2254710767161
BaseRepresentation
bin10010110110100010…
…00011010101001100
3222010100200202002022
421123101003111030
5131212002200330
64352150545312
7505545124355
oct113321032514
928110622068
1010121131340
114324129861
121b65668238
13c53b1c318
146c0294d2c
153e3838ae5
hex25b44354c

10121131340 has 24 divisors (see below), whose sum is σ = 21706598592. Its totient is φ = 3962314880.

The previous prime is 10121131291. The next prime is 10121131351. The reversal of 10121131340 is 4313112101.

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, 5382641 + ... + 5384520.

It is an arithmetic number, because the mean of its divisors is an integer number (904441608).

Almost surely, 210121131340 is an apocalyptic number.

10121131340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121131340 is an abundant number, since it is smaller than the sum of its proper divisors (11585467252).

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

10121131340 is a wasteful number, since it uses less digits than its factorization.

10121131340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10767217 (or 10767215 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10121131340 its reverse (4313112101), we get a palindrome (14434243441).

The spelling of 10121131340 in words is "ten billion, one hundred twenty-one million, one hundred thirty-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 10767161 21534322 43068644 53835805 107671610 215343220 506056567 1012113134 2024226268 2530282835 5060565670 10121131340