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104998657 = 234565159
BaseRepresentation
bin1100100001000…
…10011100000001
321022120111002011
412100202130001
5203334424112
614230252521
72413321351
oct620423401
9238514064
10104998657
11542a6055
122b1b7141
13189a3aaa
14dd32b61
159340aa7
hex6422701

104998657 has 4 divisors (see below), whose sum is σ = 109563840. Its totient is φ = 100433476.

The previous prime is 104998631. The next prime is 104998669. The reversal of 104998657 is 756899401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 756899401 = 4118460961.

It is a cyclic number.

It is not a de Polignac number, because 104998657 - 27 = 104998529 is a prime.

It is a super-2 number, since 2×1049986572 = 22049435943607298, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104998657.

It is not an unprimeable number, because it can be changed into a prime (104998687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2282557 + ... + 2282602.

It is an arithmetic number, because the mean of its divisors is an integer number (27390960).

Almost surely, 2104998657 is an apocalyptic number.

It is an amenable number.

104998657 is a deficient number, since it is larger than the sum of its proper divisors (4565183).

104998657 is an equidigital number, since it uses as much as digits as its factorization.

104998657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4565182.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 104998657 is about 10246.8852340602. The cubic root of 104998657 is about 471.7673866380.

The spelling of 104998657 in words is "one hundred four million, nine hundred ninety-eight thousand, six hundred fifty-seven".

Divisors: 1 23 4565159 104998657