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2331043140 = 2235311253249
BaseRepresentation
bin1000101011110000…
…1110010101000100
320000110021021001010
42022330032111010
514233221340030
61023150202220
7111523353066
oct21274162504
96013237033
102331043140
11a968a4238
125507b3370
132b1c23b8a
1418182d736
15d99a46b0
hex8af0e544

2331043140 has 48 divisors (see below), whose sum is σ = 6737472000. Its totient is φ = 601559040.

The previous prime is 2331043079. The next prime is 2331043147. The reversal of 2331043140 is 413401332.

It is not an unprimeable number, because it can be changed into a prime (2331043147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624765 + ... + 628484.

It is an arithmetic number, because the mean of its divisors is an integer number (140364000).

Almost surely, 22331043140 is an apocalyptic number.

2331043140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2331043140 is an abundant number, since it is smaller than the sum of its proper divisors (4406428860).

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

2331043140 is a wasteful number, since it uses less digits than its factorization.

2331043140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253292 (or 1253290 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2331043140 is about 48280.8775810879. The cubic root of 2331043140 is about 1325.9183172340.

Adding to 2331043140 its reverse (413401332), we get a palindrome (2744444472).

The spelling of 2331043140 in words is "two billion, three hundred thirty-one million, forty-three thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 155 186 310 372 465 620 930 1860 1253249 2506498 3759747 5012996 6266245 7519494 12532490 15038988 18798735 25064980 37597470 38850719 75194940 77701438 116552157 155402876 194253595 233104314 388507190 466208628 582760785 777014380 1165521570 2331043140