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42979260 = 2235716321
BaseRepresentation
bin1010001111110…
…0111110111100
32222212120110110
42203330332330
542000314020
64133110020
71031213652
oct243747674
988776413
1042979260
1122295a55
1212488310
138b9a91c
1459cadd2
153b8e8e0
hex28fcfbc

42979260 has 24 divisors (see below), whose sum is σ = 120342096. Its totient is φ = 11461120.

The previous prime is 42979259. The next prime is 42979271. The reversal of 42979260 is 6297924.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358101 + ... + 358220.

It is an arithmetic number, because the mean of its divisors is an integer number (5014254).

Almost surely, 242979260 is an apocalyptic number.

It is an amenable number.

42979260 is an abundant number, since it is smaller than the sum of its proper divisors (77362836).

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

42979260 is a wasteful number, since it uses less digits than its factorization.

42979260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716333 (or 716331 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 42979260 is about 6555.8569233930. The cubic root of 42979260 is about 350.2834710302.

The spelling of 42979260 in words is "forty-two million, nine hundred seventy-nine thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 716321 1432642 2148963 2865284 3581605 4297926 7163210 8595852 10744815 14326420 21489630 42979260