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613102020 = 223543323599
BaseRepresentation
bin100100100010110…
…011000111000100
31120201122210212020
4210202303013010
52223423231040
6140500523140
721123165306
oct4442630704
91521583766
10613102020
11295097693
121513b04b0
139a03537b
145b5d7976
1538c59cd0
hex248b31c4

613102020 has 48 divisors (see below), whose sum is σ = 1720723200. Its totient is φ = 163109376.

The previous prime is 613102003. The next prime is 613102037. The reversal of 613102020 is 20201316.

It is an interprime number because it is at equal distance from previous prime (613102003) and next prime (613102037).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14181 + ... + 37779.

It is an arithmetic number, because the mean of its divisors is an integer number (35848400).

Almost surely, 2613102020 is an apocalyptic number.

613102020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

613102020 is an abundant number, since it is smaller than the sum of its proper divisors (1107621180).

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

613102020 is a wasteful number, since it uses less digits than its factorization.

613102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24044 (or 24042 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 613102020 is about 24760.8969950606. The cubic root of 613102020 is about 849.5277746083.

Adding to 613102020 its reverse (20201316), we get a palindrome (633303336).

The spelling of 613102020 in words is "six hundred thirteen million, one hundred two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 433 866 1299 1732 2165 2598 4330 5196 6495 8660 12990 23599 25980 47198 70797 94396 117995 141594 235990 283188 353985 471980 707970 1415940 10218367 20436734 30655101 40873468 51091835 61310202 102183670 122620404 153275505 204367340 306551010 613102020