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133103139 = 31323148387
BaseRepresentation
bin1111110111011…
…11111000100011
3100021110100011220
413323233320203
5233033300024
621112510123
73204233541
oct773577043
9307410156
10133103139
11691513a4
12386ab343
1321764070
141396ad91
15ba42e79
hex7eefe23

133103139 has 16 divisors (see below), whose sum is σ = 199433472. Its totient is φ = 78347808.

The previous prime is 133103137. The next prime is 133103141. The reversal of 133103139 is 931301331.

It is an interprime number because it is at equal distance from previous prime (133103137) and next prime (133103141).

It is not a de Polignac number, because 133103139 - 21 = 133103137 is a prime.

It is a super-2 number, since 2×1331031392 = 35432891223306642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133103137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73297 + ... + 75090.

It is an arithmetic number, because the mean of its divisors is an integer number (12464592).

Almost surely, 2133103139 is an apocalyptic number.

133103139 is a deficient number, since it is larger than the sum of its proper divisors (66330333).

133103139 is a wasteful number, since it uses less digits than its factorization.

133103139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148426.

The product of its (nonzero) digits is 729, while the sum is 24.

The square root of 133103139 is about 11537.0333708454. The cubic root of 133103139 is about 510.5787854255.

The spelling of 133103139 in words is "one hundred thirty-three million, one hundred three thousand, one hundred thirty-nine".

Divisors: 1 3 13 23 39 69 299 897 148387 445161 1929031 3412901 5787093 10238703 44367713 133103139