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42739208278 = 21331101525013
BaseRepresentation
bin100111110011011101…
…001001000001010110
311002022120100201211221
4213303131021001112
51200012214131103
631344545320554
73042055163524
oct476335110126
9132276321757
1042739208278
1117142194838
12834933615a
134051716370
1420d62c9314
1511a22141bd
hex9f3749056

42739208278 has 32 divisors (see below), whose sum is σ = 71973119232. Its totient is φ = 18900432000.

The previous prime is 42739208263. The next prime is 42739208329. The reversal of 42739208278 is 87280293724.

42739208278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 181101 + ... + 343912.

It is an arithmetic number, because the mean of its divisors is an integer number (2249159976).

Almost surely, 242739208278 is an apocalyptic number.

42739208278 is a deficient number, since it is larger than the sum of its proper divisors (29233910954).

42739208278 is a wasteful number, since it uses less digits than its factorization.

42739208278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525160.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 42739208278 in words is "forty-two billion, seven hundred thirty-nine million, two hundred eight thousand, two hundred seventy-eight".

Divisors: 1 2 13 26 31 62 101 202 403 806 1313 2626 3131 6262 40703 81406 525013 1050026 6825169 13650338 16275403 32550806 53026313 106052626 211580239 423160478 689342069 1378684138 1643815703 3287631406 21369604139 42739208278