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31604632450442 = 2197313981965197
BaseRepresentation
bin1110010111110100001101…
…11000111111010110001010
311010220101002011202002210222
413023322012320333112022
513120302241401403232
6151114545005310042
76441234153231542
oct713720670772612
9133811064662728
1031604632450442
11a0854a40a6087
123665233565322
1314833c5004a0c
147b395adc0322
1539c197e10d12
hex1cbe86e3f58a

31604632450442 has 32 divisors (see below), whose sum is σ = 50949567076800. Its totient is φ = 14659311374208.

The previous prime is 31604632450439. The next prime is 31604632450463. The reversal of 31604632450442 is 24405423640613.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31604632450393 and 31604632450402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40597013 + ... + 41368184.

It is an arithmetic number, because the mean of its divisors is an integer number (1592173971150).

Almost surely, 231604632450442 is an apocalyptic number.

31604632450442 is a deficient number, since it is larger than the sum of its proper divisors (19344934626358).

31604632450442 is a wasteful number, since it uses less digits than its factorization.

31604632450442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81965430.

The product of its (nonzero) digits is 1658880, while the sum is 44.

The spelling of 31604632450442 in words is "thirty-one trillion, six hundred four billion, six hundred thirty-two million, four hundred fifty thousand, four hundred forty-two".

Divisors: 1 2 19 38 73 139 146 278 1387 2641 2774 5282 10147 20294 192793 385586 81965197 163930394 1557338743 3114677486 5983459381 11393162383 11966918762 22786324766 113685728239 216470085277 227371456478 432940170554 831700853959 1663401707918 15802316225221 31604632450442