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42001917080 = 2358111294757
BaseRepresentation
bin100111000111100000…
…100110010010011000
311000102012000110110112
4213013200212102120
51142004442321310
631143450503452
73014563255514
oct470740462230
9130365013415
1042001917080
11168a3a94a72
128182434b88
133c64a4b396
142066405144
15115c627705
hex9c7826498

42001917080 has 32 divisors (see below), whose sum is σ = 94620914640. Its totient is φ = 16780037760.

The previous prime is 42001917079. The next prime is 42001917103. The reversal of 42001917080 is 8071910024.

It is a super-2 number, since 2×420019170802 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614939 + ... + 679818.

Almost surely, 242001917080 is an apocalyptic number.

42001917080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42001917080 is an abundant number, since it is smaller than the sum of its proper divisors (52618997560).

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

42001917080 is a wasteful number, since it uses less digits than its factorization.

42001917080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295579 (or 1295575 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 42001917080 in words is "forty-two billion, one million, nine hundred seventeen thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 811 1622 3244 4055 6488 8110 16220 32440 1294757 2589514 5179028 6473785 10358056 12947570 25895140 51790280 1050047927 2100095854 4200191708 5250239635 8400383416 10500479270 21000958540 42001917080