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3120443130 = 235721170423
BaseRepresentation
bin1011100111111110…
…0010111011111010
322001110122221020210
42321333202323322
522342313140010
61233345531550
7140220220560
oct27177427372
98043587223
103120443130
111361455122
12731043bb6
133a963506c
142185d9a30
15133e35b20
hexb9fe2efa

3120443130 has 64 divisors (see below), whose sum is σ = 8599615488. Its totient is φ = 709853760.

The previous prime is 3120443111. The next prime is 3120443191. The reversal of 3120443130 is 313440213.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 3120443097 and 3120443106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9099 + ... + 79521.

It is an arithmetic number, because the mean of its divisors is an integer number (134368992).

Almost surely, 23120443130 is an apocalyptic number.

3120443130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3120443130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4299807744).

3120443130 is an abundant number, since it is smaller than the sum of its proper divisors (5479172358).

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

3120443130 is a wasteful number, since it uses less digits than its factorization.

3120443130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70651.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3120443130 is about 55860.9266840428. The cubic root of 3120443130 is about 1461.2978904138.

Adding to 3120443130 its reverse (313440213), we get a palindrome (3433883343).

The spelling of 3120443130 in words is "three billion, one hundred twenty million, four hundred forty-three thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 211 422 633 1055 1266 1477 2110 2954 3165 4431 6330 7385 8862 14770 22155 44310 70423 140846 211269 352115 422538 492961 704230 985922 1056345 1478883 2112690 2464805 2957766 4929610 7394415 14788830 14859253 29718506 44577759 74296265 89155518 104014771 148592530 208029542 222888795 312044313 445777590 520073855 624088626 1040147710 1560221565 3120443130