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354131092 = 22723975669
BaseRepresentation
bin10101000110111…
…001110010010100
3220200100201112101
4111012321302110
51211124143332
655050131444
711530031110
oct2506716224
9820321471
10354131092
11171996a27
129a720b84
13584a1633
1435064740
1521152ae7
hex151b9c94

354131092 has 48 divisors (see below), whose sum is σ = 746807040. Its totient is φ = 143649792.

The previous prime is 354131087. The next prime is 354131111. The reversal of 354131092 is 290131453.

It is a super-2 number, since 2×3541310922 = 250817660642224928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 354131092.

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, 59634 + ... + 65302.

It is an arithmetic number, because the mean of its divisors is an integer number (15558480).

Almost surely, 2354131092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 354131092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373403520).

354131092 is an abundant number, since it is smaller than the sum of its proper divisors (392675948).

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

354131092 is a wasteful number, since it uses less digits than its factorization.

354131092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5800 (or 5798 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 354131092 is about 18818.3711303609. The cubic root of 354131092 is about 707.4917058799.

The spelling of 354131092 in words is "three hundred fifty-four million, one hundred thirty-one thousand, ninety-two".

Divisors: 1 2 4 7 14 23 28 46 92 97 161 194 322 388 644 679 1358 2231 2716 4462 5669 8924 11338 15617 22676 31234 39683 62468 79366 130387 158732 260774 521548 549893 912709 1099786 1825418 2199572 3650836 3849251 7698502 12647539 15397004 25295078 50590156 88532773 177065546 354131092