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103031142 = 2329592133
BaseRepresentation
bin1100010010000…
…10000101100110
321011212112011020
412021002011212
5202333444032
614120152010
72360515224
oct611020546
9234775136
10103031142
1153181905
122a608606
1318465396
14d97db14
1590a2b2c
hex6242166

103031142 has 16 divisors (see below), whose sum is σ = 213168240. Its totient is φ = 33159392.

The previous prime is 103031141. The next prime is 103031177. The reversal of 103031142 is 241130301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103031141) 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, 295893 + ... + 296240.

It is an arithmetic number, because the mean of its divisors is an integer number (13323015).

Almost surely, 2103031142 is an apocalyptic number.

103031142 is an abundant number, since it is smaller than the sum of its proper divisors (110137098).

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

103031142 is a wasteful number, since it uses less digits than its factorization.

103031142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592167.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 103031142 is about 10150.4257053584. The cubic root of 103031142 is about 468.8020526018.

Adding to 103031142 its reverse (241130301), we get a palindrome (344161443).

The spelling of 103031142 in words is "one hundred three million, thirty-one thousand, one hundred forty-two".

Divisors: 1 2 3 6 29 58 87 174 592133 1184266 1776399 3552798 17171857 34343714 51515571 103031142