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2013234140 = 225661152287
BaseRepresentation
bin111011111111111…
…1000001111011100
312012022020220001102
41313333320033130
513110341443030
6531434332232
7100614131201
oct16777701734
95168226042
102013234140
11943466675
1248228a078
1326112c008
14151541ca8
15bbb28c45
hex77ff83dc

2013234140 has 24 divisors (see below), whose sum is σ = 4234215552. Its totient is φ = 804070080.

The previous prime is 2013234131. The next prime is 2013234149. The reversal of 2013234140 is 414323102.

It is an interprime number because it is at equal distance from previous prime (2013234131) and next prime (2013234149).

It is a super-2 number, since 2×20132341402 = 8106223404923079200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013234149) 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, 62924 + ... + 89363.

It is an arithmetic number, because the mean of its divisors is an integer number (176425648).

Almost surely, 22013234140 is an apocalyptic number.

2013234140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013234140 is an abundant number, since it is smaller than the sum of its proper divisors (2220981412).

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

2013234140 is a wasteful number, since it uses less digits than its factorization.

2013234140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152957 (or 152955 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2013234140 is about 44869.0777707766. The cubic root of 2013234140 is about 1262.6939379878.

Adding to 2013234140 its reverse (414323102), we get a palindrome (2427557242).

The spelling of 2013234140 in words is "two billion, thirteen million, two hundred thirty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 661 1322 2644 3305 6610 13220 152287 304574 609148 761435 1522870 3045740 100661707 201323414 402646828 503308535 1006617070 2013234140