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103804149 = 3227152429
BaseRepresentation
bin1100010111111…
…10110011110101
321020022210112010
412023332303311
5203033213044
614144514433
72400215001
oct613766365
9236283463
10103804149
115365a659
122a91ba19
1318676197
14db01701
1591a6bb9
hex62fecf5

103804149 has 8 divisors (see below), whose sum is σ = 139016160. Its totient is φ = 68897456.

The previous prime is 103804147. The next prime is 103804177. The reversal of 103804149 is 941408301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103804149 - 21 = 103804147 is a prime.

It is a super-2 number, since 2×1038041492 = 21550602699228402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103804147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75534 + ... + 76895.

It is an arithmetic number, because the mean of its divisors is an integer number (17377020).

Almost surely, 2103804149 is an apocalyptic number.

It is an amenable number.

103804149 is a deficient number, since it is larger than the sum of its proper divisors (35212011).

103804149 is a wasteful number, since it uses less digits than its factorization.

103804149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152659.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 103804149 is about 10188.4321168667. The cubic root of 103804149 is about 469.9715525260.

The spelling of 103804149 in words is "one hundred three million, eight hundred four thousand, one hundred forty-nine".

Divisors: 1 3 227 681 152429 457287 34601383 103804149