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211210210292 = 222691409139313
BaseRepresentation
bin1100010010110100011…
…1000000101111110100
3202012011121021101001012
43010231013000233310
511430024303212132
6241010103451352
721154662110564
oct3045507005764
9665147241035
10211210210292
1181634726104
1234b25a56b58
1316bbc9672c3
14a318c70da4
1557626d80b2
hex312d1c0bf4

211210210292 has 24 divisors (see below), whose sum is σ = 371257878600. Its totient is φ = 105137094656.

The previous prime is 211210210291. The next prime is 211210210313. The reversal of 211210210292 is 292012012112.

It can be written as a sum of positive squares in 4 ways, for example, as 1948816 + 211208261476 = 1396^2 + 459574^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210210291) 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, 1446428 + ... + 1585740.

It is an arithmetic number, because the mean of its divisors is an integer number (15469078275).

Almost surely, 2211210210292 is an apocalyptic number.

It is an amenable number.

211210210292 is a deficient number, since it is larger than the sum of its proper divisors (160047668308).

211210210292 is a wasteful number, since it uses less digits than its factorization.

211210210292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140995 (or 140993 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 211210210292 in words is "two hundred eleven billion, two hundred ten million, two hundred ten thousand, two hundred ninety-two".

Divisors: 1 2 4 269 538 1076 1409 2818 5636 139313 278626 379021 557252 758042 1516084 37475197 74950394 149900788 196292017 392584034 785168068 52802552573 105605105146 211210210292