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680900260602 = 231737180418723
BaseRepresentation
bin10011110100010001101…
…00010111001011111010
32102002112002222002212110
421322020310113023322
542123440431314402
61240445023353150
7100123225502052
oct11721064271372
92362462862773
10680900260602
1124284a49a801
12abb681527b6
134c29344a4b3
1424d54806562
1512aa23ba56c
hex9e88d172fa

680900260602 has 32 divisors (see below), whose sum is σ = 1480876886592. Its totient is φ = 207842367744.

The previous prime is 680900260571. The next prime is 680900260679. The reversal of 680900260602 is 206062009086.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90205588 + ... + 90213135.

It is an arithmetic number, because the mean of its divisors is an integer number (46277402706).

Almost surely, 2680900260602 is an apocalyptic number.

680900260602 is an abundant number, since it is smaller than the sum of its proper divisors (799976625990).

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

680900260602 is a wasteful number, since it uses less digits than its factorization.

680900260602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180418782.

The product of its (nonzero) digits is 62208, while the sum is 39.

Adding to 680900260602 its reverse (206062009086), we get a palindrome (886962269688).

The spelling of 680900260602 in words is "six hundred eighty billion, nine hundred million, two hundred sixty thousand, six hundred two".

Divisors: 1 2 3 6 17 34 37 51 74 102 111 222 629 1258 1887 3774 180418723 360837446 541256169 1082512338 3067118291 6134236582 6675492751 9201354873 13350985502 18402709746 20026478253 40052956506 113483376767 226966753534 340450130301 680900260602