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2031152144 = 24718135287
BaseRepresentation
bin111100100010000…
…1110110000010000
312020112222012221012
41321010032300100
513124433332034
6533314350052
7101222336240
oct17104166020
95215865835
102031152144
1195259473a
1248828b328
13264a63898
14153a87b20
15bd4b7cce
hex7910ec10

2031152144 has 20 divisors (see below), whose sum is σ = 4497551424. Its totient is φ = 870493728.

The previous prime is 2031152143. The next prime is 2031152183. The reversal of 2031152144 is 4412511302.

It is not an unprimeable number, because it can be changed into a prime (2031152143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9067532 + ... + 9067755.

Almost surely, 22031152144 is an apocalyptic number.

It is an amenable number.

2031152144 is an abundant number, since it is smaller than the sum of its proper divisors (2466399280).

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

2031152144 is a wasteful number, since it uses less digits than its factorization.

2031152144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18135302 (or 18135296 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2031152144 is about 45068.3053153766. The cubic root of 2031152144 is about 1266.4289172739.

Adding to 2031152144 its reverse (4412511302), we get a palindrome (6443663446).

The spelling of 2031152144 in words is "two billion, thirty-one million, one hundred fifty-two thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 56 112 18135287 36270574 72541148 126947009 145082296 253894018 290164592 507788036 1015576072 2031152144