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20840611370 = 2521126633709
BaseRepresentation
bin10011011010001100…
…100111111000101010
31222210102021202021012
4103122030213320222
5320140144030440
613323554343522
71335310162625
oct233214477052
958712252235
1020840611370
118924a88867
12405758aba2
131c718a9707
141019bc2dbc
1581e965e65
hex4da327e2a

20840611370 has 32 divisors (see below), whose sum is σ = 37715207040. Its totient is φ = 8291384640.

The previous prime is 20840611343. The next prime is 20840611403. The reversal of 20840611370 is 7311604802.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5617076 + ... + 5620784.

It is an arithmetic number, because the mean of its divisors is an integer number (1178600220).

Almost surely, 220840611370 is an apocalyptic number.

20840611370 is a deficient number, since it is larger than the sum of its proper divisors (16874595670).

20840611370 is a wasteful number, since it uses less digits than its factorization.

20840611370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6590.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 20840611370 in words is "twenty billion, eight hundred forty million, six hundred eleven thousand, three hundred seventy".

Divisors: 1 2 5 10 211 422 1055 2110 2663 3709 5326 7418 13315 18545 26630 37090 561893 782599 1123786 1565198 2809465 3912995 5618930 7825990 9877067 19754134 49385335 98770670 2084061137 4168122274 10420305685 20840611370