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64124430 = 23519231191
BaseRepresentation
bin1111010010011…
…1011000001110
311110122212011220
43310213120032
5112403440210
610210224210
71406022456
oct364473016
9143585156
1064124430
11332186a7
1219585066
1310392366
148732d66
155969c70
hex3d2760e

64124430 has 96 divisors (see below), whose sum is σ = 168542208. Its totient is φ = 15595200.

The previous prime is 64124429. The next prime is 64124471. The reversal of 64124430 is 3442146.

It is a super-2 number, since 2×641244302 = 8223885045649800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64124430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 335635 + ... + 335825.

It is an arithmetic number, because the mean of its divisors is an integer number (1755648).

Almost surely, 264124430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64124430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84271104).

64124430 is an abundant number, since it is smaller than the sum of its proper divisors (104417778).

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

64124430 is a wasteful number, since it uses less digits than its factorization.

64124430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 64124430 is about 8007.7730986836. The cubic root of 64124430 is about 400.2590613485.

Adding to 64124430 its reverse (3442146), we get a palindrome (67566576).

The spelling of 64124430 in words is "sixty-four million, one hundred twenty-four thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 31 38 57 62 93 95 114 155 186 190 191 285 310 361 382 465 570 573 589 722 930 955 1083 1146 1178 1767 1805 1910 2166 2865 2945 3534 3610 3629 5415 5730 5890 5921 7258 8835 10830 10887 11191 11842 17670 17763 18145 21774 22382 29605 33573 35526 36290 54435 55955 59210 67146 68951 88815 108870 111910 112499 137902 167865 177630 206853 224998 335730 337497 344755 413706 562495 674994 689510 1034265 1124990 1687485 2068530 2137481 3374970 4274962 6412443 10687405 12824886 21374810 32062215 64124430