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155000001006 = 23317168845317
BaseRepresentation
bin1001000001011010111…
…0000101000111101110
3112211002012211212211000
42100112232011013232
510014420000013011
6155112255541130
714125021161444
oct2202656050756
9484065755730
10155000001006
115a80a506994
122605922a7a6
131180240b636
147705852b94
154072a36356
hex2416b851ee

155000001006 has 32 divisors (see below), whose sum is σ = 364705886880. Its totient is φ = 48627451008.

The previous prime is 155000000983. The next prime is 155000001007. The reversal of 155000001006 is 600100000551.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 155000001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155000001007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84421741 + ... + 84423576.

It is an arithmetic number, because the mean of its divisors is an integer number (11397058965).

Almost surely, 2155000001006 is an apocalyptic number.

155000001006 is an abundant number, since it is smaller than the sum of its proper divisors (209705885874).

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

155000001006 is a wasteful number, since it uses less digits than its factorization.

155000001006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168845345 (or 168845339 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

Adding to 155000001006 its reverse (600100000551), we get a palindrome (755100001557).

The spelling of 155000001006 in words is "one hundred fifty-five billion, one thousand, six".

Divisors: 1 2 3 6 9 17 18 27 34 51 54 102 153 306 459 918 168845317 337690634 506535951 1013071902 1519607853 2870370389 3039215706 4558823559 5740740778 8611111167 9117647118 17222222334 25833333501 51666667002 77500000503 155000001006