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7680668500 = 225331495527
BaseRepresentation
bin1110010011100110…
…11011001101010100
3201211021112101102201
413021303123031110
5111212222343000
63310051214244
7361222414351
oct71163331524
921737471381
107680668500
11329159aa1a
1215a42a7384
1395533727b
1452c101628
152ee46d96a
hex1c9cdb354

7680668500 has 48 divisors (see below), whose sum is σ = 17315730432. Its totient is φ = 2973156000.

The previous prime is 7680668477. The next prime is 7680668503. The reversal of 7680668500 is 58660867.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7680668503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232264 + ... + 263263.

It is an arithmetic number, because the mean of its divisors is an integer number (360744384).

Almost surely, 27680668500 is an apocalyptic number.

It is an amenable number.

7680668500 is an abundant number, since it is smaller than the sum of its proper divisors (9635061932).

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

7680668500 is a wasteful number, since it uses less digits than its factorization.

7680668500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495577 (or 495565 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 7680668500 is about 87639.4232066825. The cubic root of 7680668500 is about 1973.0269030386.

The spelling of 7680668500 in words is "seven billion, six hundred eighty million, six hundred sixty-eight thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 31 50 62 100 124 125 155 250 310 500 620 775 1550 3100 3875 7750 15500 495527 991054 1982108 2477635 4955270 9910540 12388175 15361337 24776350 30722674 49552700 61445348 61940875 76806685 123881750 153613370 247763500 307226740 384033425 768066850 1536133700 1920167125 3840334250 7680668500