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2987721052 = 22746930263
BaseRepresentation
bin1011001000010101…
…0000000101011100
321201012220221210021
42302011100011130
522104324033202
61212245121524
7134016132001
oct26205200534
97635827707
102987721052
1112a3544058
126b46b92a4
13387ca55a4
14204b2b8a8
1512746aa37
hexb215015c

2987721052 has 6 divisors (see below), whose sum is σ = 5228511848. Its totient is φ = 1493860524.

The previous prime is 2987721043. The next prime is 2987721053. The reversal of 2987721052 is 2501277892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987721053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373465128 + ... + 373465135.

Almost surely, 22987721052 is an apocalyptic number.

It is an amenable number.

2987721052 is a deficient number, since it is larger than the sum of its proper divisors (2240790796).

2987721052 is a wasteful number, since it uses less digits than its factorization.

2987721052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746930267 (or 746930265 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 2987721052 is about 54660.0498719129. The cubic root of 2987721052 is about 1440.2791787670.

The spelling of 2987721052 in words is "two billion, nine hundred eighty-seven million, seven hundred twenty-one thousand, fifty-two".

Divisors: 1 2 4 746930263 1493860526 2987721052