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20400141244212 = 22321451390537967
BaseRepresentation
bin1001010001101110001110…
…01011000001011100110100
32200020020022220210211021200
410220313013023001130310
510133213442124303322
6111215410121412500
74203601342334412
oct450670713013464
980206286724250
1020400141244212
1165557189a1294
12235582603a130
13b4c956c76822
1450752d0aa2b2
152559c3d7e8ac
hex128dc72c1734

20400141244212 has 36 divisors (see below), whose sum is σ = 51602562787776. Its totient is φ = 6795360608400.

The previous prime is 20400141244199. The next prime is 20400141244261. The reversal of 20400141244212 is 21244214100402.

20400141244212 is a `hidden beast` number, since 2 + 0 + 400 + 1 + 4 + 1 + 2 + 44 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195216748 + ... + 195321219.

Almost surely, 220400141244212 is an apocalyptic number.

It is an amenable number.

20400141244212 is an abundant number, since it is smaller than the sum of its proper divisors (31202421543564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20400141244212 is a wasteful number, since it uses less digits than its factorization.

20400141244212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390539428 (or 390539423 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 20400141244212 its reverse (21244214100402), we get a palindrome (41644355344614).

The spelling of 20400141244212 in words is "twenty trillion, four hundred billion, one hundred forty-one million, two hundred forty-four thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 1451 2902 4353 5804 8706 13059 17412 26118 52236 390537967 781075934 1171613901 1562151868 2343227802 3514841703 4686455604 7029683406 14059366812 566670590117 1133341180234 1700011770351 2266682360468 3400023540702 5100035311053 6800047081404 10200070622106 20400141244212