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310400214 = 2371728639
BaseRepresentation
bin10010100000000…
…101010011010110
3210122001222001020
4102200011103112
51113430301324
650444542010
710456233615
oct2240052326
9718058036
10310400214
1114a238303
1287b51906
134c3cc887
142d31d87c
151c3b5679
hex128054d6

310400214 has 16 divisors (see below), whose sum is σ = 629544960. Its totient is φ = 102009320.

The previous prime is 310400183. The next prime is 310400219. The reversal of 310400214 is 412004013.

It is a junction number, because it is equal to n+sod(n) for n = 310400193 and 310400202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310400219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363894 + ... + 364745.

It is an arithmetic number, because the mean of its divisors is an integer number (39346560).

Almost surely, 2310400214 is an apocalyptic number.

310400214 is an abundant number, since it is smaller than the sum of its proper divisors (319144746).

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

310400214 is a wasteful number, since it uses less digits than its factorization.

310400214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728715.

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

The square root of 310400214 is about 17618.1785097098. The cubic root of 310400214 is about 677.0810681495.

Adding to 310400214 its reverse (412004013), we get a palindrome (722404227).

The spelling of 310400214 in words is "three hundred ten million, four hundred thousand, two hundred fourteen".

Divisors: 1 2 3 6 71 142 213 426 728639 1457278 2185917 4371834 51733369 103466738 155200107 310400214