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354012440 = 23553166987
BaseRepresentation
bin10101000110011…
…100110100011000
3220200010200202212
4111012130310120
51211111344230
655043414252
711526025145
oct2506346430
9820120685
10354012440
11171915871
129a684388
135845c622
14350333cc
152112c895
hex1519cd18

354012440 has 32 divisors (see below), whose sum is σ = 811561680. Its totient is φ = 138932352.

The previous prime is 354012433. The next prime is 354012487. The reversal of 354012440 is 44210453.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81374 + ... + 85613.

Almost surely, 2354012440 is an apocalyptic number.

It is an amenable number.

354012440 is an abundant number, since it is smaller than the sum of its proper divisors (457549240).

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

354012440 is a wasteful number, since it uses less digits than its factorization.

354012440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167051 (or 167047 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 354012440 is about 18815.2183085926. The cubic root of 354012440 is about 707.4126817700.

Adding to 354012440 its reverse (44210453), we get a palindrome (398222893).

The spelling of 354012440 in words is "three hundred fifty-four million, twelve thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 53 106 212 265 424 530 1060 2120 166987 333974 667948 834935 1335896 1669870 3339740 6679480 8850311 17700622 35401244 44251555 70802488 88503110 177006220 354012440