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7142090800 = 2452138811559
BaseRepresentation
bin1101010011011001…
…11010100000110000
3200102202002210201111
412221230322200300
5104111333401200
63140411443104
7341662525105
oct65154724060
920382083644
107142090800
113035584589
121473a56494
1389a895b40
144ba786aac
152bc0350ba
hex1a9b3a830

7142090800 has 120 divisors (see below), whose sum is σ = 18511627680. Its totient is φ = 2632396800.

The previous prime is 7142090783. The next prime is 7142090803. The reversal of 7142090800 is 80902417.

It is not an unprimeable number, because it can be changed into a prime (7142090803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4580421 + ... + 4581979.

It is an arithmetic number, because the mean of its divisors is an integer number (154263564).

Almost surely, 27142090800 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 7142090800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9255813840).

7142090800 is an abundant number, since it is smaller than the sum of its proper divisors (11369536880).

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

7142090800 is a wasteful number, since it uses less digits than its factorization.

7142090800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471 (or 2460 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 7142090800 is about 84510.8916057569. The cubic root of 7142090800 is about 1925.7879093167.

The spelling of 7142090800 in words is "seven billion, one hundred forty-two million, ninety thousand, eight hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 40 50 52 65 80 100 104 130 200 208 260 325 400 520 650 881 1040 1300 1559 1762 2600 3118 3524 4405 5200 6236 7048 7795 8810 11453 12472 14096 15590 17620 20267 22025 22906 24944 31180 35240 38975 40534 44050 45812 57265 62360 70480 77950 81068 88100 91624 101335 114530 124720 155900 162136 176200 183248 202670 229060 286325 311800 324272 352400 405340 458120 506675 572650 623600 810680 916240 1013350 1145300 1373479 1621360 2026700 2290600 2746958 4053400 4581200 5493916 6867395 8106800 10987832 13734790 17855227 21975664 27469580 34336975 35710454 54939160 68673950 71420908 89276135 109878320 137347900 142841816 178552270 274695800 285683632 357104540 446380675 549391600 714209080 892761350 1428418160 1785522700 3571045400 7142090800