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9031169420 = 2257413172337
BaseRepresentation
bin10000110100100110…
…01011010110001100
3212022101201221102022
420122103023112030
5121443434410140
64052053145312
7436541450000
oct103223132614
925271657368
109031169420
113914950289
12190062b238
13b0c074640
1461960a700
1537ccd70b5
hex21a4cb58c

9031169420 has 480 divisors, whose sum is σ = 27036955008. Its totient is φ = 2503581696.

The previous prime is 9031169417. The next prime is 9031169429. The reversal of 9031169420 is 249611309.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9031169429) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 244085642 + ... + 244085678.

Almost surely, 29031169420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9031169420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13518477504).

9031169420 is an abundant number, since it is smaller than the sum of its proper divisors (18005785588).

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

9031169420 is a wasteful number, since it uses less digits than its factorization.

9031169420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 9031169420 is about 95032.4650843068. The cubic root of 9031169420 is about 2082.4823527916.

The spelling of 9031169420 in words is "nine billion, thirty-one million, one hundred sixty-nine thousand, four hundred twenty".