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42869997999 = 3247101347513
BaseRepresentation
bin100111111011010000…
…000100000110101111
311002122200110112121200
4213323100010012233
51200244204413444
631405540500543
73045233653623
oct477320040657
9132580415550
1042869997999
11171a9aa6014
1283850aa753
13407284a42a
142109813183
1511ad94b969
hex9fb4041af

42869997999 has 12 divisors (see below), whose sum is σ = 63240848736. Its totient is φ = 27971913312.

The previous prime is 42869997949. The next prime is 42869998001. The reversal of 42869997999 is 99979996824.

It is a happy number.

42869997999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42869997999 - 211 = 42869995951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42869997949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50673334 + ... + 50674179.

It is an arithmetic number, because the mean of its divisors is an integer number (5270070728).

Almost surely, 242869997999 is an apocalyptic number.

42869997999 is a deficient number, since it is larger than the sum of its proper divisors (20370850737).

42869997999 is a wasteful number, since it uses less digits than its factorization.

42869997999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101347566 (or 101347563 counting only the distinct ones).

The product of its digits is 1428513408, while the sum is 81.

The spelling of 42869997999 in words is "forty-two billion, eight hundred sixty-nine million, nine hundred ninety-seven thousand, nine hundred ninety-nine".

Divisors: 1 3 9 47 141 423 101347513 304042539 912127617 4763333111 14289999333 42869997999