Search a number
-
+
61930051330 = 2571187745337
BaseRepresentation
bin111001101011010100…
…011001011100000010
312220212000022120102211
4321223110121130002
52003313043120310
644241131532334
74321453515340
oct715324313402
9186760276384
1061930051330
112429a999204
12100042ba0aa
135abc5831b4
142dd6d40990
151926de9c8a
hexe6b519702

61930051330 has 32 divisors (see below), whose sum is σ = 127506462336. Its totient is φ = 21215243904.

The previous prime is 61930051301. The next prime is 61930051331. The reversal of 61930051330 is 3315003916.

It is a junction number, because it is equal to n+sod(n) for n = 61930051292 and 61930051301.

It is not an unprimeable number, because it can be changed into a prime (61930051331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289579 + ... + 455758.

It is an arithmetic number, because the mean of its divisors is an integer number (3984576948).

Almost surely, 261930051330 is an apocalyptic number.

61930051330 is an abundant number, since it is smaller than the sum of its proper divisors (65576411006).

61930051330 is a wasteful number, since it uses less digits than its factorization.

61930051330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746538.

The product of its (nonzero) digits is 7290, while the sum is 31.

The spelling of 61930051330 in words is "sixty-one billion, nine hundred thirty million, fifty-one thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 1187 2374 5935 8309 11870 16618 41545 83090 745337 1490674 3726685 5217359 7453370 10434718 26086795 52173590 884715019 1769430038 4423575095 6193005133 8847150190 12386010266 30965025665 61930051330