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211274157297 = 3711443879199
BaseRepresentation
bin1100010011000011101…
…0111100110011110001
3202012100001121012211210
43010300322330303301
511430142141013142
6241020310230333
721156366464160
oct3046072746361
9665301535753
10211274157297
1181667832475
1234b433553a9
1316bccc96978
14a3235593d7
15576811a49c
hex3130ebccf1

211274157297 has 16 divisors (see below), whose sum is σ = 321970073600. Its totient is φ = 120717402192.

The previous prime is 211274157287. The next prime is 211274157313. The reversal of 211274157297 is 792751472112.

It is not a de Polignac number, because 211274157297 - 27 = 211274157169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211274157287) 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, 199297 + ... + 679902.

It is an arithmetic number, because the mean of its divisors is an integer number (20123129600).

Almost surely, 2211274157297 is an apocalyptic number.

It is an amenable number.

211274157297 is a deficient number, since it is larger than the sum of its proper divisors (110695916303).

211274157297 is a wasteful number, since it uses less digits than its factorization.

211274157297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890652.

The product of its digits is 493920, while the sum is 48.

The spelling of 211274157297 in words is "two hundred eleven billion, two hundred seventy-four million, one hundred fifty-seven thousand, two hundred ninety-seven".

Divisors: 1 3 7 21 11443 34329 80101 240303 879199 2637597 6154393 18463179 10060674157 30182022471 70424719099 211274157297