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2998142388 = 223283281733
BaseRepresentation
bin1011001010110100…
…0000010110110100
321201221112102011200
42302231000112310
522120011024023
61213300332500
7134203534623
oct26255002664
97657472150
102998142388
1112a941182a
126b80a4130
1338a1b3b67
142062816ba
15128328743
hexb2b405b4

2998142388 has 18 divisors (see below), whose sum is σ = 7578637794. Its totient is φ = 999380784.

The previous prime is 2998142383. The next prime is 2998142393. The reversal of 2998142388 is 8832418992.

It is an interprime number because it is at equal distance from previous prime (2998142383) and next prime (2998142393).

It can be written as a sum of positive squares in only one way, i.e., 2758140324 + 240002064 = 52518^2 + 15492^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2998142383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41640831 + ... + 41640902.

It is an arithmetic number, because the mean of its divisors is an integer number (421035433).

Almost surely, 22998142388 is an apocalyptic number.

It is an amenable number.

2998142388 is an abundant number, since it is smaller than the sum of its proper divisors (4580495406).

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

2998142388 is a wasteful number, since it uses less digits than its factorization.

2998142388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83281743 (or 83281738 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 2998142388 is about 54755.2955247253. The cubic root of 2998142388 is about 1441.9518266099.

The spelling of 2998142388 in words is "two billion, nine hundred ninety-eight million, one hundred forty-two thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 83281733 166563466 249845199 333126932 499690398 749535597 999380796 1499071194 2998142388