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129800353 = 1913891747
BaseRepresentation
bin1111011110010…
…01100010100001
3100001020112121111
413233021202201
5231212102403
620514023321
73134166454
oct757114241
9301215544
10129800353
11672a5a21
1237577b41
1320b78957
141334b49b
15b5de56d
hex7bc98a1

129800353 has 8 divisors (see below), whose sum is σ = 130890240. Its totient is φ = 128715120.

The previous prime is 129800347. The next prime is 129800369. The reversal of 129800353 is 353008921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-129800353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129800303) 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, 73426 + ... + 75172.

It is an arithmetic number, because the mean of its divisors is an integer number (16361280).

Almost surely, 2129800353 is an apocalyptic number.

It is an amenable number.

129800353 is a deficient number, since it is larger than the sum of its proper divisors (1089887).

129800353 is a wasteful number, since it uses less digits than its factorization.

129800353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 129800353 is about 11392.9957868859. The cubic root of 129800353 is about 506.3202431008.

The spelling of 129800353 in words is "one hundred twenty-nine million, eight hundred thousand, three hundred fifty-three".

Divisors: 1 191 389 1747 74299 333677 679583 129800353