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133103140 = 22553199631
BaseRepresentation
bin1111110111011…
…11111000100100
3100021110100011221
413323233320210
5233033300030
621112510124
73204233542
oct773577044
9307410157
10133103140
11691513a5
12386ab344
1321764071
141396ad92
15ba42e7a
hex7eefe24

133103140 has 48 divisors (see below), whose sum is σ = 286675200. Its totient is φ = 51891840.

The previous prime is 133103137. The next prime is 133103141. The reversal of 133103140 is 41301331.

It is not an unprimeable number, because it can be changed into a prime (133103141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210625 + ... + 211255.

It is an arithmetic number, because the mean of its divisors is an integer number (5972400).

Almost surely, 2133103140 is an apocalyptic number.

133103140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133103140 is an abundant number, since it is smaller than the sum of its proper divisors (153572060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133103140 is a wasteful number, since it uses less digits than its factorization.

133103140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 133103140 is about 11537.0334141841. The cubic root of 133103140 is about 510.5787867041.

Adding to 133103140 its reverse (41301331), we get a palindrome (174404471).

The spelling of 133103140 in words is "one hundred thirty-three million, one hundred three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 53 106 199 212 265 398 530 631 796 995 1060 1262 1990 2524 3155 3980 6310 10547 12620 21094 33443 42188 52735 66886 105470 125569 133772 167215 210940 251138 334430 502276 627845 668860 1255690 2511380 6655157 13310314 26620628 33275785 66551570 133103140