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1023411431 = 71314912273
BaseRepresentation
bin111101000000000…
…000010011100111
32122022201200120002
4331000000103213
54043443131211
6245315131515
734234565540
oct7500002347
92568650502
101023411431
11485764179
122468a3b9b
131340462c3
1499cc34c7
155eca803b
hex3d0004e7

1023411431 has 16 divisors (see below), whose sum is σ = 1181461248. Its totient is φ = 868358400.

The previous prime is 1023411419. The next prime is 1023411449. The reversal of 1023411431 is 1341143201.

It is not a de Polignac number, because 1023411431 - 214 = 1023395047 is a prime.

It is a super-2 number, since 2×10234114312 = 2094741914202935522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023411461) 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, 449111 + ... + 451383.

It is an arithmetic number, because the mean of its divisors is an integer number (73841328).

Almost surely, 21023411431 is an apocalyptic number.

1023411431 is a deficient number, since it is larger than the sum of its proper divisors (158049817).

1023411431 is a wasteful number, since it uses less digits than its factorization.

1023411431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1023411431 is about 31990.8022875326. The cubic root of 1023411431 is about 1007.7436908033.

Adding to 1023411431 its reverse (1341143201), we get a palindrome (2364554632).

The spelling of 1023411431 in words is "one billion, twenty-three million, four hundred eleven thousand, four hundred thirty-one".

Divisors: 1 7 131 491 917 2273 3437 15911 64321 297763 450247 1116043 2084341 7812301 146201633 1023411431