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103918299554 = 251959149777
BaseRepresentation
bin110000011001000000…
…0110110100110100010
3100221020020121120202102
41200302000312212202
53200311041041204
6115423413450402
710336122654236
oct1406200664642
9327206546672
10103918299554
11400871975a3
1218182040a02
139a51526aa4
14505b5c85c6
152a8322241e
hex18320369a2

103918299554 has 4 divisors (see below), whose sum is σ = 155877449334. Its totient is φ = 51959149776.

The previous prime is 103918299547. The next prime is 103918299571. The reversal of 103918299554 is 455992819301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455992819301 = 2831611282047.

It can be written as a sum of positive squares in only one way, i.e., 72331413025 + 31586886529 = 268945^2 + 177727^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 103918299554.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25979574887 + ... + 25979574890.

Almost surely, 2103918299554 is an apocalyptic number.

103918299554 is a deficient number, since it is larger than the sum of its proper divisors (51959149780).

103918299554 is an equidigital number, since it uses as much as digits as its factorization.

103918299554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51959149779.

The product of its (nonzero) digits is 3499200, while the sum is 56.

The spelling of 103918299554 in words is "one hundred three billion, nine hundred eighteen million, two hundred ninety-nine thousand, five hundred fifty-four".

Divisors: 1 2 51959149777 103918299554