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1420051031 = 74146110733
BaseRepresentation
bin101010010100100…
…0100001001010111
310122222002001210122
41110221010021113
510402013113111
6352524342155
750122143320
oct12451041127
93588061718
101420051031
116696443a3
123376a495b
1319827c1a9
14d6851447
1584a05cdb
hex54a44257

1420051031 has 16 divisors (see below), whose sum is σ = 1666260288. Its totient is φ = 1184812800.

The previous prime is 1420050967. The next prime is 1420051037. The reversal of 1420051031 is 1301500241.

It is a cyclic number.

It is not a de Polignac number, because 1420051031 - 26 = 1420050967 is a prime.

It is a super-2 number, since 2×14200510312 = 4033089861288325922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420051037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126941 + ... + 137673.

It is an arithmetic number, because the mean of its divisors is an integer number (104141268).

Almost surely, 21420051031 is an apocalyptic number.

1420051031 is a deficient number, since it is larger than the sum of its proper divisors (246209257).

1420051031 is a wasteful number, since it uses less digits than its factorization.

1420051031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11242.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1420051031 is about 37683.5644678154. The cubic root of 1420051031 is about 1124.0043288609.

Adding to 1420051031 its reverse (1301500241), we get a palindrome (2721551272).

The spelling of 1420051031 in words is "one billion, four hundred twenty million, fifty-one thousand, thirty-one".

Divisors: 1 7 41 287 461 3227 10733 18901 75131 132307 440053 3080371 4947913 34635391 202864433 1420051031