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28742074223037 = 375573392455723
BaseRepresentation
bin1101000100100000010010…
…00111111100100110111101
310202202201022120102021211220
412202100021013330212331
512231402232000114122
6141043532052103553
76024355251613020
oct642201107744675
9122681276367756
1028742074223037
11918149965a41a
1232824a6604bb9
13130649b05b496
147151a3a691b7
1534c9a9a1025c
hex1a24091fc9bd

28742074223037 has 16 divisors (see below), whose sum is σ = 43797542853120. Its totient is φ = 16424006256432.

The previous prime is 28742074222993. The next prime is 28742074223041. The reversal of 28742074223037 is 73032247024782.

It is not a de Polignac number, because 28742074223037 - 26 = 28742074222973 is a prime.

It is a super-2 number, since 2×287420742230372 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28742078223037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10476258 + ... + 12931980.

It is an arithmetic number, because the mean of its divisors is an integer number (2737346428320).

Almost surely, 228742074223037 is an apocalyptic number.

It is an amenable number.

28742074223037 is a deficient number, since it is larger than the sum of its proper divisors (15055468630083).

28742074223037 is a wasteful number, since it uses less digits than its factorization.

28742074223037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013072.

The product of its (nonzero) digits is 6322176, while the sum is 51.

The spelling of 28742074223037 in words is "twenty-eight trillion, seven hundred forty-two billion, seventy-four million, two hundred twenty-three thousand, thirty-seven".

Divisors: 1 3 7 21 557339 1672017 2455723 3901373 7367169 11704119 17190061 51570183 1368670201097 4106010603291 9580691407679 28742074223037