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43142572390 = 25293726914947
BaseRepresentation
bin101000001011011111…
…110110100101100110
311010100200100202101111
4220023133312211212
51201323444304030
631452555015234
73055053546301
oct501337664546
9133320322344
1043142572390
1117329948205
12844043a51a
1340b7164c58
142133ac7b38
1511c783e62a
hexa0b7f6966

43142572390 has 64 divisors (see below), whose sum is σ = 82817899200. Its totient is φ = 16150288896.

The previous prime is 43142572387. The next prime is 43142572423. The reversal of 43142572390 is 9327524134.

It is a super-2 number, since 2×431425723902 (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 31 ways as a sum of consecutive naturals, for example, 2878897 + ... + 2893843.

It is an arithmetic number, because the mean of its divisors is an integer number (1294029675).

Almost surely, 243142572390 is an apocalyptic number.

43142572390 is a deficient number, since it is larger than the sum of its proper divisors (39675326810).

43142572390 is a wasteful number, since it uses less digits than its factorization.

43142572390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15289.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 43142572390 in words is "forty-three billion, one hundred forty-two million, five hundred seventy-two thousand, three hundred ninety".

Divisors: 1 2 5 10 29 37 58 74 145 185 269 290 370 538 1073 1345 2146 2690 5365 7801 9953 10730 14947 15602 19906 29894 39005 49765 74735 78010 99530 149470 288637 433463 553039 577274 866926 1106078 1443185 2167315 2765195 2886370 4020743 4334630 5530390 8041486 16038131 20103715 32076262 40207430 80190655 116601547 148767491 160381310 233203094 297534982 583007735 743837455 1166015470 1487674910 4314257239 8628514478 21571286195 43142572390