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151795049 = 721685007
BaseRepresentation
bin10010000110000…
…11010101101001
3101120121222122212
421003003111221
5302324420144
623021254505
73522144110
oct1103032551
9346558585
10151795049
117875895a
1242a04435
13255a9c73
1416234c77
15d4d649e
hex90c3569

151795049 has 4 divisors (see below), whose sum is σ = 173480064. Its totient is φ = 130110036.

The previous prime is 151795037. The next prime is 151795067. The reversal of 151795049 is 940597151.

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: 940597151 = 1372353627.

It is not a de Polignac number, because 151795049 - 212 = 151790953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151794997 and 151795015.

It is not an unprimeable number, because it can be changed into a prime (151795069) 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, 10842497 + ... + 10842510.

It is an arithmetic number, because the mean of its divisors is an integer number (43370016).

Almost surely, 2151795049 is an apocalyptic number.

It is an amenable number.

151795049 is a deficient number, since it is larger than the sum of its proper divisors (21685015).

151795049 is an equidigital number, since it uses as much as digits as its factorization.

151795049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21685014.

The product of its (nonzero) digits is 56700, while the sum is 41.

The square root of 151795049 is about 12320.5133415779. The cubic root of 151795049 is about 533.4403571246.

The spelling of 151795049 in words is "one hundred fifty-one million, seven hundred ninety-five thousand, forty-nine".

Divisors: 1 7 21685007 151795049