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1030431142 = 2131923891019
BaseRepresentation
bin111101011010110…
…010000110100110
32122210221022210101
4331122302012212
54102242244032
6250125414314
734351343266
oct7532620646
92583838711
101030431142
11489719194
1224910a39a
13135633490
149abcd7a6
15606e2de7
hex3d6b21a6

1030431142 has 64 divisors (see below), whose sum is σ = 1850688000. Its totient is φ = 425703168.

The previous prime is 1030431133. The next prime is 1030431151. The reversal of 1030431142 is 2411340301.

It is an interprime number because it is at equal distance from previous prime (1030431133) and next prime (1030431151).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1010709 + ... + 1011727.

It is an arithmetic number, because the mean of its divisors is an integer number (28917000).

Almost surely, 21030431142 is an apocalyptic number.

1030431142 is a deficient number, since it is larger than the sum of its proper divisors (820256858).

1030431142 is a wasteful number, since it uses less digits than its factorization.

1030431142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1030431142 is about 32100.3293129525. The cubic root of 1030431142 is about 1010.0425241057.

Adding to 1030431142 its reverse (2411340301), we get a palindrome (3441771443).

The spelling of 1030431142 in words is "one billion, thirty million, four hundred thirty-one thousand, one hundred forty-two".

Divisors: 1 2 13 19 23 26 38 46 89 178 247 299 437 494 598 874 1019 1157 1691 2038 2047 2314 3382 4094 5681 11362 13247 19361 21983 23437 26494 26611 38722 38893 43966 46874 53222 77786 90691 181382 251693 304681 445303 503386 505609 609362 890606 1011218 1178983 1723129 2085893 2357966 3446258 4171786 5788939 11577878 22400677 27116609 39631967 44801354 54233218 79263934 515215571 1030431142