Search a number
-
+
12401510450 = 252726182981
BaseRepresentation
bin10111000110011000…
…00000100000110010
31012000021122000010212
423203030000200302
5200344241313300
65410331224122
7616215046100
oct134314004062
935007560125
1012401510450
11529436939a
1224a12a8042
1312283b4784
14859096c70
154c8b31935
hex2e3300832

12401510450 has 72 divisors (see below), whose sum is σ = 27273030084. Its totient is φ = 4182192000.

The previous prime is 12401510449. The next prime is 12401510467. The reversal of 12401510450 is 5401510421.

It can be written as a sum of positive squares in 6 ways, for example, as 761042569 + 11640467881 = 27587^2 + 107891^2 .

It is a super-2 number, since 2×124015104502 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 107960 + ... + 190940.

Almost surely, 212401510450 is an apocalyptic number.

12401510450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12401510450 is an abundant number, since it is smaller than the sum of its proper divisors (14871519634).

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

12401510450 is a wasteful number, since it uses less digits than its factorization.

12401510450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83068 (or 83056 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The spelling of 12401510450 in words is "twelve billion, four hundred one million, five hundred ten thousand, four hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 61 70 98 122 175 245 305 350 427 490 610 854 1225 1525 2135 2450 2989 3050 4270 5978 10675 14945 21350 29890 74725 82981 149450 165962 414905 580867 829810 1161734 2074525 2904335 4066069 4149050 5061841 5808670 8132138 10123682 14521675 20330345 25309205 29043350 35432887 40660690 50618410 70865774 101651725 126546025 177164435 203303450 248030209 253092050 354328870 496060418 885822175 1240151045 1771644350 2480302090 6200755225 12401510450