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61201252 = 22723292113
BaseRepresentation
bin1110100101110…
…1101101100100
311021011100100001
43221131231210
5111131420002
610023431044
71342126210
oct351355544
9137140301
1061201252
1131601452
12185b5484
13c8aa978
1481b1940
15558da87
hex3a5db64

61201252 has 72 divisors (see below), whose sum is σ = 133451136. Its totient is φ = 24009216.

The previous prime is 61201247. The next prime is 61201267. The reversal of 61201252 is 25210216.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 541548 + ... + 541660.

It is an arithmetic number, because the mean of its divisors is an integer number (1853488).

Almost surely, 261201252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61201252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66725568).

61201252 is an abundant number, since it is smaller than the sum of its proper divisors (72249884).

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

61201252 is a wasteful number, since it uses less digits than its factorization.

61201252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 61201252 is about 7823.1229058478. The cubic root of 61201252 is about 394.0821545296.

Adding to 61201252 its reverse (25210216), we get a palindrome (86411468).

The spelling of 61201252 in words is "sixty-one million, two hundred one thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 23 28 29 46 58 92 113 116 161 203 226 322 406 452 644 667 791 812 841 1334 1582 1682 2599 2668 3164 3277 3364 4669 5198 5887 6554 9338 10396 11774 13108 18193 18676 19343 22939 23548 36386 38686 45878 72772 75371 77372 91756 95033 135401 150742 190066 270802 301484 380132 527597 541604 665231 1055194 1330462 2110388 2185759 2660924 4371518 8743036 15300313 30600626 61201252