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351150121 = 7226772
BaseRepresentation
bin10100111011100…
…010000000101001
3220110202021102001
4110323202000221
51204343300441
654502211001
711462504200
oct2473420051
9813667361
10351150121
11170240313
1299723a61
135799984a
14348ca237
1520c64731
hex14ee2029

351150121 has 9 divisors (see below), whose sum is σ = 408633399. Its totient is φ = 300873384.

The previous prime is 351150119. The next prime is 351150133. The reversal of 351150121 is 121051153.

The square root of 351150121 is 18739.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6528025 + 344622096 = 2555^2 + 18564^2 .

It is not a de Polignac number, because 351150121 - 21 = 351150119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351150101) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 129835 + ... + 132511.

It is an arithmetic number, because the mean of its divisors is an integer number (45403711).

Almost surely, 2351150121 is an apocalyptic number.

351150121 is the 18739-th square number.

351150121 is the 9370-th centered octagonal number.

It is an amenable number.

351150121 is a deficient number, since it is larger than the sum of its proper divisors (57483278).

351150121 is an frugal number, since it uses more digits than its factorization.

351150121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5368 (or 2684 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

The cubic root of 351150121 is about 705.5009574283.

The spelling of 351150121 in words is "three hundred fifty-one million, one hundred fifty thousand, one hundred twenty-one".

Divisors: 1 7 49 2677 18739 131173 7166329 50164303 351150121