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13133005228 = 2271393374359
BaseRepresentation
bin11000011101100100…
…11100000110101100
31020220021001210100001
430032302130012230
5203344022131403
610011101514044
7643306462660
oct141662340654
936807053301
1013133005228
11562a26a232
122666272924
131313b00315
148c82ac8a0
1551ce75c1d
hex30ec9c1ac

13133005228 has 24 divisors (see below), whose sum is σ = 26454982400. Its totient is φ = 5587936848.

The previous prime is 13133005153. The next prime is 13133005229. The reversal of 13133005228 is 82250033131.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 13133005196 and 13133005205.

It is not an unprimeable number, because it can be changed into a prime (13133005229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1683288 + ... + 1691071.

Almost surely, 213133005228 is an apocalyptic number.

It is an amenable number.

13133005228 is an abundant number, since it is smaller than the sum of its proper divisors (13321977172).

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

13133005228 is a wasteful number, since it uses less digits than its factorization.

13133005228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374509 (or 3374507 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 13133005228 its reverse (82250033131), we get a palindrome (95383038359).

The spelling of 13133005228 in words is "thirteen billion, one hundred thirty-three million, five thousand, two hundred twenty-eight".

Divisors: 1 2 4 7 14 28 139 278 556 973 1946 3892 3374359 6748718 13497436 23620513 47241026 94482052 469035901 938071802 1876143604 3283251307 6566502614 13133005228