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20867241207 = 319503727817
BaseRepresentation
bin10011011011110010…
…001101010011110111
31222212021101200112110
4103123302031103313
5320214003204312
613330345222103
71336052423631
oct233362152367
958767350473
1020867241207
11893901719a
124064491933
131c77271707
14101d555a51
15821e7643c
hex4dbc8d4f7

20867241207 has 16 divisors (see below), whose sum is σ = 29345621760. Its totient is φ = 13153090752.

The previous prime is 20867241151. The next prime is 20867241217. The reversal of 20867241207 is 70214276802.

It is not a de Polignac number, because 20867241207 - 216 = 20867175671 is a prime.

It is a super-2 number, since 2×208672412072 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20867241217) 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, 335238 + ... + 392579.

It is an arithmetic number, because the mean of its divisors is an integer number (1834101360).

Almost surely, 220867241207 is an apocalyptic number.

20867241207 is a deficient number, since it is larger than the sum of its proper divisors (8478380553).

20867241207 is a wasteful number, since it uses less digits than its factorization.

20867241207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728342.

The product of its (nonzero) digits is 75264, while the sum is 39.

The spelling of 20867241207 in words is "twenty billion, eight hundred sixty-seven million, two hundred forty-one thousand, two hundred seven".

Divisors: 1 3 19 57 503 1509 9557 28671 727817 2183451 13828523 41485569 366091951 1098275853 6955747069 20867241207