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2131315410 = 235731259179
BaseRepresentation
bin111111100001001…
…0100101011010010
312111112110001002210
41333002110223102
513331104043120
6551253252550
7103546611360
oct17702245322
95445401083
102131315410
119a40878a4
124b5934156
1327c7337a3
141630bc630
15c71a0ce0
hex7f094ad2

2131315410 has 192 divisors, whose sum is σ = 6177254400. Its totient is φ = 460863360.

The previous prime is 2131315409. The next prime is 2131315411. The reversal of 2131315410 is 145131312.

2131315410 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2131315409) and next prime (2131315411).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131315411) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11906701 + ... + 11906879.

It is an arithmetic number, because the mean of its divisors is an integer number (32173200).

Almost surely, 22131315410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131315410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3088627200).

2131315410 is an abundant number, since it is smaller than the sum of its proper divisors (4045938990).

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

2131315410 is a wasteful number, since it uses less digits than its factorization.

2131315410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2131315410 is about 46166.1717061313. The cubic root of 2131315410 is about 1286.9131590210.

Adding to 2131315410 its reverse (145131312), we get a palindrome (2276446722).

The spelling of 2131315410 in words is "two billion, one hundred thirty-one million, three hundred fifteen thousand, four hundred ten".