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149863305669 = 3711648758899
BaseRepresentation
bin1000101110010010001…
…1001001000111000101
3112022211020020201111120
42023210203021013011
54423410001240134
6152502442424153
713553516036340
oct2134443110705
9468736221446
10149863305669
1158613a24730
1225064b02059
131119415b93c
14737956b457
153d71acc649
hex22e48c91c5

149863305669 has 16 divisors (see below), whose sum is σ = 249123417600. Its totient is φ = 77851067760.

The previous prime is 149863305659. The next prime is 149863305737. The reversal of 149863305669 is 966503368941.

It is not a de Polignac number, because 149863305669 - 27 = 149863305541 is a prime.

It is a super-2 number, since 2×1498633056692 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149863305659) 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, 324379219 + ... + 324379680.

It is an arithmetic number, because the mean of its divisors is an integer number (15570213600).

Almost surely, 2149863305669 is an apocalyptic number.

It is an amenable number.

149863305669 is a deficient number, since it is larger than the sum of its proper divisors (99260111931).

149863305669 is a wasteful number, since it uses less digits than its factorization.

149863305669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648758920.

The product of its (nonzero) digits is 25194240, while the sum is 60.

The spelling of 149863305669 in words is "one hundred forty-nine billion, eight hundred sixty-three million, three hundred five thousand, six hundred sixty-nine".

Divisors: 1 3 7 11 21 33 77 231 648758899 1946276697 4541312293 7136347889 13623936879 21409043667 49954435223 149863305669