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7904948982 = 2372313162467
BaseRepresentation
bin1110101110010101…
…11111001011110110
3202101220120000102020
413113022333023312
5112142131331412
63344222254010
7366614646330
oct72712771366
922356500366
107904948982
113397157197
121647427306
1398c943108
1454dc04450
15313ec218c
hex1d72bf2f6

7904948982 has 64 divisors (see below), whose sum is σ = 18998267904. Its totient is φ = 2143833120.

The previous prime is 7904948981. The next prime is 7904949037. The reversal of 7904948982 is 2898494097.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7904948981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95313 + ... + 157779.

It is an arithmetic number, because the mean of its divisors is an integer number (296847936).

Almost surely, 27904948982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7904948982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9499133952).

7904948982 is an abundant number, since it is smaller than the sum of its proper divisors (11093318922).

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

7904948982 is a wasteful number, since it uses less digits than its factorization.

7904948982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62633.

The product of its (nonzero) digits is 10450944, while the sum is 60.

The square root of 7904948982 is about 88909.7800132246. The cubic root of 7904948982 is about 1992.0475026373.

The spelling of 7904948982 in words is "seven billion, nine hundred four million, nine hundred forty-eight thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 7 14 21 23 42 46 69 131 138 161 262 322 393 483 786 917 966 1834 2751 3013 5502 6026 9039 18078 21091 42182 62467 63273 124934 126546 187401 374802 437269 874538 1311807 1436741 2623614 2873482 4310223 8183177 8620446 10057187 16366354 20114374 24549531 30171561 49099062 57282239 60343122 114564478 171846717 188213071 343693434 376426142 564639213 1129278426 1317491497 2634982994 3952474491 7904948982