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20020212999 = 3219379541571
BaseRepresentation
bin10010101001010011…
…000011010100000111
31220200020120012021100
4102221103003110013
5312000133303444
613110330351143
71306056000633
oct225123032407
956606505240
1020020212999
118543985386
123a6888b4b3
131b70933ca7
14d7cc67dc3
157c290ee69
hex4a94c3507

20020212999 has 48 divisors (see below), whose sum is σ = 30630371200. Its totient is φ = 12565627200.

The previous prime is 20020212997. The next prime is 20020213009. The reversal of 20020212999 is 99921202002.

It is not a de Polignac number, because 20020212999 - 21 = 20020212997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020212997) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35061384 + ... + 35061954.

Almost surely, 220020212999 is an apocalyptic number.

20020212999 is a deficient number, since it is larger than the sum of its proper divisors (10610158201).

20020212999 is a wasteful number, since it uses less digits than its factorization.

20020212999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516 (or 1513 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 20020212999 in words is "twenty billion, twenty million, two hundred twelve thousand, nine hundred ninety-nine".

Divisors: 1 3 9 19 57 171 379 541 571 1137 1623 1713 3411 4869 5139 7201 10279 10849 21603 30837 32547 64809 92511 97641 205039 216409 308911 615117 649227 926733 1845351 1947681 2780199 3895741 4111771 5869309 11687223 12335313 17607927 35061669 37005939 52823781 117077269 351231807 1053695421 2224468111 6673404333 20020212999