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3102325220 = 225720721523
BaseRepresentation
bin1011100011101001…
…1011100111100100
322000012120110011002
42320322123213210
522323143401340
61231501332432
7136610220641
oct27072334744
98005513132
103102325220
1113521aa945
12726b67118
133a59604c7
14216040dc8
15132557715
hexb8e9b9e4

3102325220 has 24 divisors (see below), whose sum is σ = 6516089664. Its totient is φ = 1240700256.

The previous prime is 3102325211. The next prime is 3102325277. The reversal of 3102325220 is 225232013.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3102325192 and 3102325201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133379 + ... + 154901.

It is an arithmetic number, because the mean of its divisors is an integer number (271503736).

Almost surely, 23102325220 is an apocalyptic number.

It is an amenable number.

3102325220 is an abundant number, since it is smaller than the sum of its proper divisors (3413764444).

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

3102325220 is a wasteful number, since it uses less digits than its factorization.

3102325220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28739 (or 28737 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3102325220 is about 55698.5208062117. The cubic root of 3102325220 is about 1458.4642041428.

Adding to 3102325220 its reverse (225232013), we get a palindrome (3327557233).

The spelling of 3102325220 in words is "three billion, one hundred two million, three hundred twenty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 7207 14414 21523 28828 36035 43046 72070 86092 107615 144140 215230 430460 155116261 310232522 620465044 775581305 1551162610 3102325220