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2920699620 = 2235517232953
BaseRepresentation
bin1010111000010110…
…0101011011100100
321112112210220200000
42232011211123210
521440144341440
61201452421300
7132243352146
oct25605453344
97475726600
102920699620
111269727943
12696177830
1337713a737
141d9c82c96
1512162c730
hexae1656e4

2920699620 has 576 divisors, whose sum is σ = 10699153920. Its totient is φ = 664215552.

The previous prime is 2920699571. The next prime is 2920699633. The reversal of 2920699620 is 269960292.

2920699620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 55107514 + ... + 55107566.

It is an arithmetic number, because the mean of its divisors is an integer number (18574920).

Almost surely, 22920699620 is an apocalyptic number.

2920699620 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 2920699620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5349576960).

2920699620 is an abundant number, since it is smaller than the sum of its proper divisors (7778454300).

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

2920699620 is a wasteful number, since it uses less digits than its factorization.

2920699620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 2920699620 is about 54043.4974811956. The cubic root of 2920699620 is about 1429.4280432262.

The spelling of 2920699620 in words is "two billion, nine hundred twenty million, six hundred ninety-nine thousand, six hundred twenty".