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20454376341 = 372573789953
BaseRepresentation
bin10011000011001011…
…010000001110010101
31221210111111222102010
4103003023100032111
5313342310020331
613221400134433
71322610221160
oct230313201625
957714458363
1020454376341
118746a64763
123b6a167419
131c0c877589
14dc07a2ad7
157eaac0e46
hex4c32d0395

20454376341 has 16 divisors (see below), whose sum is σ = 31289860224. Its totient is φ = 11642732544.

The previous prime is 20454376303. The next prime is 20454376351. The reversal of 20454376341 is 14367345402.

It is not a de Polignac number, because 20454376341 - 210 = 20454375317 is a prime.

It is a super-2 number, since 2×204543763412 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20454376341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20454376351) 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, 1889580 + ... + 1900373.

It is an arithmetic number, because the mean of its divisors is an integer number (1955616264).

Almost surely, 220454376341 is an apocalyptic number.

20454376341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20454376341 is a deficient number, since it is larger than the sum of its proper divisors (10835483883).

20454376341 is a wasteful number, since it uses less digits than its factorization.

20454376341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3790220.

The product of its (nonzero) digits is 241920, while the sum is 39.

The spelling of 20454376341 in words is "twenty billion, four hundred fifty-four million, three hundred seventy-six thousand, three hundred forty-one".

Divisors: 1 3 7 21 257 771 1799 5397 3789953 11369859 26529671 79589013 974017921 2922053763 6818125447 20454376341