Search a number
-
+
31445524214 = 21397110911243
BaseRepresentation
bin11101010010010011…
…001001111011110110
310000011111022010210222
4131102103021323312
51003400023233324
622240150414342
72162151355106
oct352223117366
9100144263728
1031445524214
11123771a6845
1261170613b2
132c719c2980
14174440b206
15c409b255e
hex7524c9ef6

31445524214 has 32 divisors (see below), whose sum is σ = 51371137440. Its totient is φ = 14349468672.

The previous prime is 31445524213. The next prime is 31445524241. The reversal of 31445524214 is 41242554413.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31445524213) 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, 2791277 + ... + 2802519.

It is an arithmetic number, because the mean of its divisors is an integer number (1605348045).

Almost surely, 231445524214 is an apocalyptic number.

31445524214 is a deficient number, since it is larger than the sum of its proper divisors (19925613226).

31445524214 is a wasteful number, since it uses less digits than its factorization.

31445524214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12464.

The product of its digits is 76800, while the sum is 35.

The spelling of 31445524214 in words is "thirty-one billion, four hundred forty-five million, five hundred twenty-four thousand, two hundred fourteen".

Divisors: 1 2 13 26 97 194 1109 1261 2218 2522 11243 14417 22486 28834 107573 146159 215146 292318 1090571 1398449 2181142 2796898 12468487 14177423 24936974 28354846 162090331 324180662 1209443239 2418886478 15722762107 31445524214