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2920306530 = 23597343551
BaseRepresentation
bin1010111000010000…
…0101011101100010
321112112001221110010
42232010011131202
521440044302110
61201440145350
7132240124131
oct25604053542
97475057403
102920306530
111269489579
12696008256
1337703083b
141d9bbd918
151215a1020
hexae105762

2920306530 has 16 divisors (see below), whose sum is σ = 7008735744. Its totient is φ = 778748400.

The previous prime is 2920306513. The next prime is 2920306531. The reversal of 2920306530 is 356030292.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 97343551 = 2920306530 / (2 + 9 + 2 + 0 + 3 + 0 + 6 + 5 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (2920306531) 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, 48671746 + ... + 48671805.

It is an arithmetic number, because the mean of its divisors is an integer number (438045984).

Almost surely, 22920306530 is an apocalyptic number.

2920306530 is an abundant number, since it is smaller than the sum of its proper divisors (4088429214).

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

2920306530 is a wasteful number, since it uses less digits than its factorization.

2920306530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97343561.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 2920306530 is about 54039.8605660673. The cubic root of 2920306530 is about 1429.3639125780.

The spelling of 2920306530 in words is "two billion, nine hundred twenty million, three hundred six thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 97343551 194687102 292030653 486717755 584061306 973435510 1460153265 2920306530