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6131283428 = 221532820857
BaseRepresentation
bin1011011010111001…
…11111010111100100
3120211022002110200102
411231130333113210
5100024102032203
62452222403232
7304640022614
oct55534772744
916738073612
106131283428
112666a49a96
121231430518
1376934377a
14422424a44
1525d41b888
hex16d73f5e4

6131283428 has 6 divisors (see below), whose sum is σ = 10729746006. Its totient is φ = 3065641712.

The previous prime is 6131283407. The next prime is 6131283493. The reversal of 6131283428 is 8243821316.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5706593764 + 424689664 = 75542^2 + 20608^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6131283391 and 6131283400.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766410425 + ... + 766410432.

It is an arithmetic number, because the mean of its divisors is an integer number (1788291001).

Almost surely, 26131283428 is an apocalyptic number.

It is an amenable number.

6131283428 is a deficient number, since it is larger than the sum of its proper divisors (4598462578).

6131283428 is a wasteful number, since it uses less digits than its factorization.

6131283428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532820861 (or 1532820859 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 6131283428 is about 78302.5122713186. The cubic root of 6131283428 is about 1830.2783006133.

The spelling of 6131283428 in words is "six billion, one hundred thirty-one million, two hundred eighty-three thousand, four hundred twenty-eight".

Divisors: 1 2 4 1532820857 3065641714 6131283428