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148242913 = 7132125311
BaseRepresentation
bin10001101011000…
…00000111100001
3101022221112001021
420311200013201
5300422233123
622413205441
73450021040
oct1065400741
9338845037
10148242913
1176752105
1241790881
1324935200
141598c557
15d033c5d
hex8d601e1

148242913 has 12 divisors (see below), whose sum is σ = 183456768. Its totient is φ = 117290160.

The previous prime is 148242893. The next prime is 148242937. The reversal of 148242913 is 319242841.

It is a de Polignac number, because none of the positive numbers 2k-148242913 is a prime.

It is a super-2 number, since 2×1482429132 = 43951922509451138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148242953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61473 + ... + 63838.

It is an arithmetic number, because the mean of its divisors is an integer number (15288064).

Almost surely, 2148242913 is an apocalyptic number.

148242913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

148242913 is a deficient number, since it is larger than the sum of its proper divisors (35213855).

148242913 is a wasteful number, since it uses less digits than its factorization.

148242913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125344 (or 125331 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 148242913 is about 12175.5046301991. The cubic root of 148242913 is about 529.2464823110.

The spelling of 148242913 in words is "one hundred forty-eight million, two hundred forty-two thousand, nine hundred thirteen".

Divisors: 1 7 13 91 169 1183 125311 877177 1629043 11403301 21177559 148242913