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151001610505 = 530200322101
BaseRepresentation
bin1000110010100001100…
…1011011100100001001
3112102202120011121011221
42030220121123210021
54433222403014010
6153211424322041
713623650340334
oct2145031334411
9472676147157
10151001610505
1159048521a29
1225322173321
1311315c316b5
1474467db61b
153ddb9ccdda
hex232865b909

151001610505 has 4 divisors (see below), whose sum is σ = 181201932612. Its totient is φ = 120801288400.

The previous prime is 151001610451. The next prime is 151001610521. The reversal of 151001610505 is 505016100151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505016100151 = 1579319832869.

It can be written as a sum of positive squares in 2 ways, for example, as 71624746384 + 79376864121 = 267628^2 + 281739^2 .

It is a de Polignac number, because none of the positive numbers 2k-151001610505 is a prime.

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 151001610505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15100161046 + ... + 15100161055.

It is an arithmetic number, because the mean of its divisors is an integer number (45300483153).

Almost surely, 2151001610505 is an apocalyptic number.

It is an amenable number.

151001610505 is a deficient number, since it is larger than the sum of its proper divisors (30200322107).

151001610505 is an equidigital number, since it uses as much as digits as its factorization.

151001610505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30200322106.

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 151001610505 its reverse (505016100151), we get a palindrome (656017710656).

The spelling of 151001610505 in words is "one hundred fifty-one billion, one million, six hundred ten thousand, five hundred five".

Divisors: 1 5 30200322101 151001610505