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20925127378 = 267883176849
BaseRepresentation
bin10011011111001111…
…000001101011010010
32000000022022121102201
4103133033001223102
5320323313034003
613340214033414
71340354435161
oct233717015322
960008277381
1020925127378
118968763a01
12407b94886a
131c8625b49c
1410271033d8
158270acb1d
hex4df3c1ad2

20925127378 has 16 divisors (see below), whose sum is σ = 31892421600. Its totient is φ = 10294675776.

The previous prime is 20925127369. The next prime is 20925127403. The reversal of 20925127378 is 87372152902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29898 + ... + 206746.

It is an arithmetic number, because the mean of its divisors is an integer number (1993276350).

Almost surely, 220925127378 is an apocalyptic number.

20925127378 is a deficient number, since it is larger than the sum of its proper divisors (10967294222).

20925127378 is a wasteful number, since it uses less digits than its factorization.

20925127378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177801.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 20925127378 in words is "twenty billion, nine hundred twenty-five million, one hundred twenty-seven thousand, three hundred seventy-eight".

Divisors: 1 2 67 134 883 1766 59161 118322 176849 353698 11848883 23697766 156157667 312315334 10462563689 20925127378