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20454663161210 = 2531151303436097
BaseRepresentation
bin1001010011010011110001…
…11011101000010101111010
32200102110001122102011212212
410221221320323220111322
510140112122232124320
6111300424215335122
74210541423102555
oct451517073502572
980373048364785
1020454663161210
116576857114523
1223643013814a2
13b54b357c4b85
1450a0221ad69c
152571156e19c5
hex129a78ee857a

20454663161210 has 32 divisors (see below), whose sum is σ = 38006422152192. Its totient is φ = 7917863639040.

The previous prime is 20454663161203. The next prime is 20454663161227. The reversal of 20454663161210 is 1216136645402.

It is a super-2 number, since 2×204546631612102 (a number of 27 digits) contains 22 as substring.

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, 46685882 + ... + 47121978.

It is an arithmetic number, because the mean of its divisors is an integer number (1187700692256).

Almost surely, 220454663161210 is an apocalyptic number.

20454663161210 is a deficient number, since it is larger than the sum of its proper divisors (17551758990982).

20454663161210 is a wasteful number, since it uses less digits than its factorization.

20454663161210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587438.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 20454663161210 in words is "twenty trillion, four hundred fifty-four billion, six hundred sixty-three million, one hundred sixty-one thousand, two hundred ten".

Divisors: 1 2 5 10 31 62 155 310 151303 302606 436097 756515 872194 1513030 2180485 4360970 4690393 9380786 13519007 23451965 27038014 46903930 67595035 135190070 65982784391 131965568782 329913921955 659827843910 2045466316121 4090932632242 10227331580605 20454663161210