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42695140 = 22571107281
BaseRepresentation
bin1010001011011…
…1100111100100
32222100010201111
42202313213210
541412221030
64123034404
71025621425
oct242674744
988303644
1042695140
1122111544
121236ba04
138acb4c7
14595564c
153b3562a
hex28b79e4

42695140 has 48 divisors (see below), whose sum is σ = 92098944. Its totient is φ = 16620800.

The previous prime is 42695137. The next prime is 42695141. The reversal of 42695140 is 4159624.

It is not an unprimeable number, because it can be changed into a prime (42695141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151800 + ... + 152080.

It is an arithmetic number, because the mean of its divisors is an integer number (1918728).

Almost surely, 242695140 is an apocalyptic number.

It is an amenable number.

42695140 is an abundant number, since it is smaller than the sum of its proper divisors (49403804).

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

42695140 is a wasteful number, since it uses less digits than its factorization.

42695140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 42695140 is about 6534.1518194789. The cubic root of 42695140 is about 349.5098990717.

It can be divided in two parts, 4269 and 5140, that added together give a square (9409 = 972).

The spelling of 42695140 in words is "forty-two million, six hundred ninety-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 71 107 142 214 281 284 355 428 535 562 710 1070 1124 1405 1420 2140 2810 5620 7597 15194 19951 30067 30388 37985 39902 60134 75970 79804 99755 120268 150335 151940 199510 300670 399020 601340 2134757 4269514 8539028 10673785 21347570 42695140