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310400142 = 23139414229
BaseRepresentation
bin10010100000000…
…101010010001110
3210122001221221120
4102200011102032
51113430301032
650444541410
710456233453
oct2240052216
9718057846
10310400142
1114a238248
1287b51866
134c3cc830
142d31d82a
151c3b562c
hex1280548e

310400142 has 32 divisors (see below), whose sum is σ = 669422880. Its totient is φ = 95383680.

The previous prime is 310400119. The next prime is 310400183. The reversal of 310400142 is 241004013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71284 + ... + 75512.

It is an arithmetic number, because the mean of its divisors is an integer number (20919465).

Almost surely, 2310400142 is an apocalyptic number.

310400142 is an abundant number, since it is smaller than the sum of its proper divisors (359022738).

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

310400142 is a wasteful number, since it uses less digits than its factorization.

310400142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5188.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 310400142 is about 17618.1764663656. The cubic root of 310400142 is about 677.0810157979.

Adding to 310400142 its reverse (241004013), we get a palindrome (551404155).

The spelling of 310400142 in words is "three hundred ten million, four hundred thousand, one hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 941 1882 2823 4229 5646 8458 12233 12687 24466 25374 36699 54977 73398 109954 164931 329862 3979489 7958978 11938467 23876934 51733357 103466714 155200071 310400142