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83858901 = 374392867
BaseRepresentation
bin1001111111110…
…01010111010101
312211210110210020
410333321113111
5132431441101
612153215353
72035534410
oct477712725
9184713706
1083858901
1143377485
1224101559
13144b1969
14b1ccb77
157567136
hex4ff95d5

83858901 has 16 divisors (see below), whose sum is σ = 130758144. Its totient is φ = 46804464.

The previous prime is 83858893. The next prime is 83858903. The reversal of 83858901 is 10985838.

It is not a de Polignac number, because 83858901 - 23 = 83858893 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83858903) 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, 45531 + ... + 47336.

It is an arithmetic number, because the mean of its divisors is an integer number (8172384).

Almost surely, 283858901 is an apocalyptic number.

It is an amenable number.

83858901 is a deficient number, since it is larger than the sum of its proper divisors (46899243).

83858901 is a wasteful number, since it uses less digits than its factorization.

83858901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92920.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 83858901 is about 9157.4505731672. The cubic root of 83858901 is about 437.7065599838.

The spelling of 83858901 in words is "eighty-three million, eight hundred fifty-eight thousand, nine hundred one".

Divisors: 1 3 7 21 43 129 301 903 92867 278601 650069 1950207 3993281 11979843 27952967 83858901