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1371038140 = 225131523297
BaseRepresentation
bin101000110111000…
…0110000110111100
310112112211221202101
41101232012012330
510301441210030
6344014034444
745655426513
oct12156060674
93475757671
101371038140
11643a0827a
123231a8a24
1318b07b194
14d013367a
15805737ca
hex51b861bc

1371038140 has 24 divisors (see below), whose sum is σ = 2901164112. Its totient is φ = 544227840.

The previous prime is 1371038129. The next prime is 1371038143. The reversal of 1371038140 is 418301731.

It is a junction number, because it is equal to n+sod(n) for n = 1371038099 and 1371038108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1371038143) 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, 259029 + ... + 264268.

It is an arithmetic number, because the mean of its divisors is an integer number (120881838).

Almost surely, 21371038140 is an apocalyptic number.

1371038140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1371038140 is an abundant number, since it is smaller than the sum of its proper divisors (1530125972).

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

1371038140 is a wasteful number, since it uses less digits than its factorization.

1371038140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523437 (or 523435 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1371038140 is about 37027.5321888997. The cubic root of 1371038140 is about 1110.9210060166.

Adding to 1371038140 its reverse (418301731), we get a palindrome (1789339871).

The spelling of 1371038140 in words is "one billion, three hundred seventy-one million, thirty-eight thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 131 262 524 655 1310 2620 523297 1046594 2093188 2616485 5232970 10465940 68551907 137103814 274207628 342759535 685519070 1371038140