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103568661950 = 25213592700617
BaseRepresentation
bin110000001110100101…
…1000101110110111110
3100220022212201011010112
41200131023011312332
53144102034140300
6115325003510022
710324346046515
oct1403513056676
9326285634115
10103568661950
113aa1789a6a6
12180a4b28312
1399c6c69830
145026db367c
152a626aae35
hex181d2c5dbe

103568661950 has 48 divisors (see below), whose sum is σ = 210972278160. Its totient is φ = 37592574720.

The previous prime is 103568661943. The next prime is 103568661953. The reversal of 103568661950 is 59166865301.

103568661950 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1035686619503 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103568661953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1311959 + ... + 1388658.

It is an arithmetic number, because the mean of its divisors is an integer number (4395255795).

Almost surely, 2103568661950 is an apocalyptic number.

103568661950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103568661950 is an abundant number, since it is smaller than the sum of its proper divisors (107403616210).

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

103568661950 is a wasteful number, since it uses less digits than its factorization.

103568661950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700701 (or 2700696 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 103568661950 in words is "one hundred three billion, five hundred sixty-eight million, six hundred sixty-one thousand, nine hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 59 65 118 130 295 325 590 650 767 1475 1534 2950 3835 7670 19175 38350 2700617 5401234 13503085 27006170 35108021 67515425 70216042 135030850 159336403 175540105 318672806 351080210 796682015 877700525 1593364030 1755401050 2071373239 3983410075 4142746478 7966820150 10356866195 20713732390 51784330975 103568661950