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61152630 = 235711231151
BaseRepresentation
bin1110100101000…
…1110101110110
311021001212122020
43221101311312
5111123341010
610022414010
71341534360
oct351216566
9137055566
1061152630
1131578970
1218591306
13c8917b6
14819bd30
15557e470
hex3a51d76

61152630 has 128 divisors (see below), whose sum is σ = 191102976. Its totient is φ = 12144000.

The previous prime is 61152613. The next prime is 61152643. The reversal of 61152630 is 3625116.

It is a self number, because there is not a number n which added to its sum of digits gives 61152630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52555 + ... + 53705.

It is an arithmetic number, because the mean of its divisors is an integer number (1492992).

Almost surely, 261152630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61152630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95551488).

61152630 is an abundant number, since it is smaller than the sum of its proper divisors (129950346).

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

61152630 is a wasteful number, since it uses less digits than its factorization.

61152630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 61152630 is about 7820.0147058685. The cubic root of 61152630 is about 393.9777659299.

Adding to 61152630 its reverse (3625116), we get a palindrome (64777746).

The spelling of 61152630 in words is "sixty-one million, one hundred fifty-two thousand, six hundred thirty".

Divisors: 1 2 3 5 6 7 10 11 14 15 21 22 23 30 33 35 42 46 55 66 69 70 77 105 110 115 138 154 161 165 210 230 231 253 322 330 345 385 462 483 506 690 759 770 805 966 1151 1155 1265 1518 1610 1771 2302 2310 2415 2530 3453 3542 3795 4830 5313 5755 6906 7590 8057 8855 10626 11510 12661 16114 17265 17710 24171 25322 26473 26565 34530 37983 40285 48342 52946 53130 63305 75966 79419 80570 88627 120855 126610 132365 158838 177254 185311 189915 241710 264730 265881 291203 370622 379830 397095 443135 531762 555933 582406 794190 873609 886270 926555 1111866 1329405 1456015 1747218 1853110 2038421 2658810 2779665 2912030 4076842 4368045 5559330 6115263 8736090 10192105 12230526 20384210 30576315 61152630