Search a number
-
+
30561541625156 = 2253173833284481
BaseRepresentation
bin1101111001011101010011…
…10101010001010101000100
311000012122200101022221121212
412330232221311101111010
513001210014124001111
6144555440045030552
76302666330425343
oct674565165212504
9130178611287555
1030561541625156
119813093567393
123517046555458
131408c30521929
14779287abdb5a
1537ee9867c98b
hex1bcba9d51544

30561541625156 has 24 divisors (see below), whose sum is σ = 54806786950104. Its totient is φ = 14905792778240.

The previous prime is 30561541625117. The next prime is 30561541625189. The reversal of 30561541625156 is 65152614516503.

It can be written as a sum of positive squares in 4 ways, for example, as 7331455167556 + 23230086457600 = 2707666^2 + 4819760^2 .

It is a super-2 number, since 2×305615416251562 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416605565 + ... + 416678916.

It is an arithmetic number, because the mean of its divisors is an integer number (2283616122921).

Almost surely, 230561541625156 is an apocalyptic number.

It is an amenable number.

30561541625156 is a deficient number, since it is larger than the sum of its proper divisors (24245245324948).

30561541625156 is a wasteful number, since it uses less digits than its factorization.

30561541625156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833284711 (or 833284709 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 50.

The spelling of 30561541625156 in words is "thirty trillion, five hundred sixty-one billion, five hundred forty-one million, six hundred twenty-five thousand, one hundred fifty-six".

Divisors: 1 2 4 53 106 173 212 346 692 9169 18338 36676 833284481 1666568962 3333137924 44164077493 88328154986 144158215213 176656309972 288316430426 576632860852 7640385406289 15280770812578 30561541625156