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151347471793 = 721621067399
BaseRepresentation
bin1000110011110100000…
…0110010010110110001
3112110122122222011200021
42030331000302112301
54434424423044133
6153310021323441
713635350166310
oct2147500622661
9473578864607
10151347471793
115920577a701
12253b9b66581
131136c798b4b
14747a70c277
153e0c04a52d
hex233d0325b1

151347471793 has 4 divisors (see below), whose sum is σ = 172968539200. Its totient is φ = 129726404388.

The previous prime is 151347471761. The next prime is 151347471823. The reversal of 151347471793 is 397174743151.

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: 397174743151 = 2391661819009.

It is not a de Polignac number, because 151347471793 - 25 = 151347471761 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 151347471793.

It is not an unprimeable number, because it can be changed into a prime (151347471703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10810533693 + ... + 10810533706.

It is an arithmetic number, because the mean of its divisors is an integer number (43242134800).

Almost surely, 2151347471793 is an apocalyptic number.

It is an amenable number.

151347471793 is a deficient number, since it is larger than the sum of its proper divisors (21621067407).

151347471793 is an equidigital number, since it uses as much as digits as its factorization.

151347471793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21621067406.

The product of its digits is 2222640, while the sum is 52.

The spelling of 151347471793 in words is "one hundred fifty-one billion, three hundred forty-seven million, four hundred seventy-one thousand, seven hundred ninety-three".

Divisors: 1 7 21621067399 151347471793