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61275257230 = 25111035408231
BaseRepresentation
bin111001000100010010…
…100011100110001110
312212011101012120210111
4321010102203212032
52000442431212410
644052141230234
74266313043545
oct710422434616
9185141176714
1061275257230
1123a94315760
12ba60b6237a
135a16a11075
142d73db315c
1518d96a6b8a
hexe444a398e

61275257230 has 32 divisors (see below), whose sum is σ = 121490523648. Its totient is φ = 22065578400.

The previous prime is 61275257189. The next prime is 61275257257. The reversal of 61275257230 is 3275257216.

It is a congruent number.

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, 2692786 + ... + 2715445.

It is an arithmetic number, because the mean of its divisors is an integer number (3796578864).

Almost surely, 261275257230 is an apocalyptic number.

61275257230 is a deficient number, since it is larger than the sum of its proper divisors (60215266418).

61275257230 is a wasteful number, since it uses less digits than its factorization.

61275257230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5408352.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 61275257230 in words is "sixty-one billion, two hundred seventy-five million, two hundred fifty-seven thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 103 110 206 515 1030 1133 2266 5665 11330 5408231 10816462 27041155 54082310 59490541 118981082 297452705 557047793 594905410 1114095586 2785238965 5570477930 6127525723 12255051446 30637628615 61275257230