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2990054520 = 23335171491093
BaseRepresentation
bin1011001000111000…
…1001110001111000
321201101022111201000
42302032021301320
522110423221040
61212411125000
7134045021055
oct26216116170
97641274630
102990054520
1112a4898242
126b5443760
1338861173b
1420517802c
1512777c130
hexb2389c78

2990054520 has 256 divisors, whose sum is σ = 10633680000. Its totient is φ = 744726528.

The previous prime is 2990054479. The next prime is 2990054521. The reversal of 2990054520 is 254500992.

It is a happy number.

2990054520 is a `hidden beast` number, since 2 + 9 + 90 + 0 + 545 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990054521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2735094 + ... + 2736186.

Almost surely, 22990054520 is an apocalyptic number.

2990054520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2990054520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5316840000).

2990054520 is an abundant number, since it is smaller than the sum of its proper divisors (7643625480).

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

2990054520 is a wasteful number, since it uses less digits than its factorization.

2990054520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 2990054520 is about 54681.3909845022. The cubic root of 2990054520 is about 1440.6540431686.

The spelling of 2990054520 in words is "two billion, nine hundred ninety million, fifty-four thousand, five hundred twenty".