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148696913 = 163912251
BaseRepresentation
bin10001101110011…
…10111101010001
3101100210120211002
420313032331101
5301031300123
622431031345
73453621461
oct1067167521
9340716732
10148696913
1176a32212
124196b555
1324a63a51
1415a69ba1
15d0c3528
hex8dcef51

148696913 has 4 divisors (see below), whose sum is σ = 149609328. Its totient is φ = 147784500.

The previous prime is 148696897. The next prime is 148696927. The reversal of 148696913 is 319696841.

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: 319696841 = 2911024029.

It is a cyclic number.

It is not a de Polignac number, because 148696913 - 24 = 148696897 is a prime.

It is a super-2 number, since 2×1486969132 = 44221543871459138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148699913) 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, 455963 + ... + 456288.

It is an arithmetic number, because the mean of its divisors is an integer number (37402332).

Almost surely, 2148696913 is an apocalyptic number.

It is an amenable number.

148696913 is a deficient number, since it is larger than the sum of its proper divisors (912415).

148696913 is an equidigital number, since it uses as much as digits as its factorization.

148696913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912414.

The product of its digits is 279936, while the sum is 47.

The square root of 148696913 is about 12194.1343686217. The cubic root of 148696913 is about 529.7862113895.

The spelling of 148696913 in words is "one hundred forty-eight million, six hundred ninety-six thousand, nine hundred thirteen".

Divisors: 1 163 912251 148696913