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149069948179 = 820918159331
BaseRepresentation
bin1000101011010101000…
…0101110010100010011
3112020202221101222121211
42022311100232110103
54420243401320204
6152252022200551
713525043436625
oct2126520562423
9466687358554
10149069948179
1158247110489
1224a83283157
1311098993339
147302050c15
153d27118804
hex22b542e513

149069948179 has 4 divisors (see below), whose sum is σ = 149088115720. Its totient is φ = 149051780640.

The previous prime is 149069948171. The next prime is 149069948191. The reversal of 149069948179 is 971849960941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 971849960941 = 1019622276841.

It is a cyclic number.

It is not a de Polignac number, because 149069948179 - 23 = 149069948171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149069948171) 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, 9071457 + ... + 9087874.

It is an arithmetic number, because the mean of its divisors is an integer number (37272028930).

Almost surely, 2149069948179 is an apocalyptic number.

149069948179 is a deficient number, since it is larger than the sum of its proper divisors (18167541).

149069948179 is an equidigital number, since it uses as much as digits as its factorization.

149069948179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18167540.

The product of its (nonzero) digits is 35271936, while the sum is 67.

The spelling of 149069948179 in words is "one hundred forty-nine billion, sixty-nine million, nine hundred forty-eight thousand, one hundred seventy-nine".

Divisors: 1 8209 18159331 149069948179