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42795690 = 2357203789
BaseRepresentation
bin1010001101000…
…0001010101010
32222112020122120
42203100022222
541423430230
64125132110
71026520530
oct243201252
988466576
1042795690
1122180043
12123ba036
138b351c2
145980150
153b55310
hex28d02aa

42795690 has 32 divisors (see below), whose sum is σ = 117383040. Its totient is φ = 9781824.

The previous prime is 42795673. The next prime is 42795691. The reversal of 42795690 is 9659724.

It is a super-2 number, since 2×427956902 = 3662942165152200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42795691) 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, 101685 + ... + 102104.

It is an arithmetic number, because the mean of its divisors is an integer number (3668220).

Almost surely, 242795690 is an apocalyptic number.

42795690 is an abundant number, since it is smaller than the sum of its proper divisors (74587350).

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

42795690 is a wasteful number, since it uses less digits than its factorization.

42795690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203806.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 42795690 is about 6541.8414838637. The cubic root of 42795690 is about 349.7840572714.

The spelling of 42795690 in words is "forty-two million, seven hundred ninety-five thousand, six hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 203789 407578 611367 1018945 1222734 1426523 2037890 2853046 3056835 4279569 6113670 7132615 8559138 14265230 21397845 42795690