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21474033012470 = 256732050795541
BaseRepresentation
bin1001110000111110100000…
…00111000000111011110110
32211000220020021122000001102
410320133100013000323312
510303312304422344340
6113401011245130102
74344306361631303
oct470372007007366
984026207560042
1021474033012470
11692a0a4899355
1224a998a259932
13bc9cb9a44b5c
145434c4d480aa
152738c76ed215
hex1387d01c0ef6

21474033012470 has 16 divisors (see below), whose sum is σ = 39230173743408. Its totient is φ = 8461410022560.

The previous prime is 21474033012457. The next prime is 21474033012479. The reversal of 21474033012470 is 7421033047412.

It is a super-2 number, since 2×214740330124702 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21474033012479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16025397101 + ... + 16025398440.

It is an arithmetic number, because the mean of its divisors is an integer number (2451885858963).

Almost surely, 221474033012470 is an apocalyptic number.

21474033012470 is a deficient number, since it is larger than the sum of its proper divisors (17756140730938).

21474033012470 is a wasteful number, since it uses less digits than its factorization.

21474033012470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32050795615.

The product of its (nonzero) digits is 112896, while the sum is 38.

Adding to 21474033012470 its reverse (7421033047412), we get a palindrome (28895066059882).

The spelling of 21474033012470 in words is "twenty-one trillion, four hundred seventy-four billion, thirty-three million, twelve thousand, four hundred seventy".

Divisors: 1 2 5 10 67 134 335 670 32050795541 64101591082 160253977705 320507955410 2147403301247 4294806602494 10737016506235 21474033012470