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31422320410 = 25132295312097
BaseRepresentation
bin11101010000111010…
…101000111100011010
310000002212122021011211
4131100322220330122
51003323103223120
622234001213334
72161450213405
oct352072507432
9100085567154
1031422320410
1112365098448
12610b33124a
132c69c5a200
1417412cad3c
15c3d92c25a
hex750ea8f1a

31422320410 has 96 divisors (see below), whose sum is σ = 64558315440. Its totient is φ = 10989748224.

The previous prime is 31422320351. The next prime is 31422320429. The reversal of 31422320410 is 1402322413.

It can be written as a sum of positive squares in 24 ways, for example, as 11326706329 + 20095614081 = 106427^2 + 141759^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2591482 + ... + 2603578.

Almost surely, 231422320410 is an apocalyptic number.

31422320410 is an abundant number, since it is smaller than the sum of its proper divisors (33135995030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31422320410 is a wasteful number, since it uses less digits than its factorization.

31422320410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12212 (or 12199 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31422320410 its reverse (1402322413), we get a palindrome (32824642823).

The spelling of 31422320410 in words is "thirty-one billion, four hundred twenty-two million, three hundred twenty thousand, four hundred ten".

Divisors: 1 2 5 10 13 26 29 53 58 65 106 130 145 169 265 290 338 377 530 689 754 845 1378 1537 1690 1885 3074 3445 3770 4901 6890 7685 8957 9802 12097 15370 17914 19981 24194 24505 39962 44785 49010 60485 89570 99905 120970 157261 199810 259753 314522 350813 519506 641141 701626 786305 1282282 1298765 1572610 1754065 2044393 2597530 3205705 3508130 4088786 4560569 6411410 8334833 9121138 10221965 16669666 18593089 20443930 22802845 37186178 41674165 45605690 59287397 83348330 92965445 108352829 118574794 185930890 216705658 241710157 296436985 483420314 541764145 592873970 1083528290 1208550785 2417101570 3142232041 6284464082 15711160205 31422320410