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2152002388 = 22538000597
BaseRepresentation
bin1000000001000100…
…1111001101010100
312112222101001022011
42000101033031110
513401403034023
6553312514004
7104220501304
oct20021171524
95488331264
102152002388
11a04827278
1250084b904
13283ac77c3
14165b45604
15c8dda50d
hex8044f354

2152002388 has 6 divisors (see below), whose sum is σ = 3766004186. Its totient is φ = 1076001192.

The previous prime is 2152002373. The next prime is 2152002389. The reversal of 2152002388 is 8832002512.

It can be written as a sum of positive squares in only one way, i.e., 1909515204 + 242487184 = 43698^2 + 15572^2 .

It is a super-2 number, since 2×21520023882 = 9262228555915405088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152002389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269000295 + ... + 269000302.

Almost surely, 22152002388 is an apocalyptic number.

It is an amenable number.

2152002388 is a deficient number, since it is larger than the sum of its proper divisors (1614001798).

2152002388 is a wasteful number, since it uses less digits than its factorization.

2152002388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538000601 (or 538000599 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 2152002388 is about 46389.6797574633. The cubic root of 2152002388 is about 1291.0634397369.

The spelling of 2152002388 in words is "two billion, one hundred fifty-two million, two thousand, three hundred eighty-eight".

Divisors: 1 2 4 538000597 1076001194 2152002388