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830621029 = 7373207031
BaseRepresentation
bin110001100000100…
…100010101100101
32010212221220211211
4301200210111211
53200114333104
6214231031421
726404106440
oct6140442545
92125856754
10830621029
11396955967
121b220b571
13103114744
147c45a657
154cdc4e04
hex31824565

830621029 has 8 divisors (see below), whose sum is σ = 974937728. Its totient is φ = 692718480.

The previous prime is 830621023. The next prime is 830621063. The reversal of 830621029 is 920126038.

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

It is a cyclic number.

It is not a de Polignac number, because 830621029 - 211 = 830618981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830621023) 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, 1603257 + ... + 1603774.

It is an arithmetic number, because the mean of its divisors is an integer number (121867216).

Almost surely, 2830621029 is an apocalyptic number.

It is an amenable number.

830621029 is a deficient number, since it is larger than the sum of its proper divisors (144316699).

830621029 is a wasteful number, since it uses less digits than its factorization.

830621029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3207075.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 830621029 is about 28820.4966820490. The cubic root of 830621029 is about 940.0139687829.

The spelling of 830621029 in words is "eight hundred thirty million, six hundred twenty-one thousand, twenty-nine".

Divisors: 1 7 37 259 3207031 22449217 118660147 830621029