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31453203254 = 21173101211919
BaseRepresentation
bin11101010010110000…
…011100101100110110
310000012000202021110212
4131102300130230312
51003404010001004
622241023145422
72162303550014
oct352260345466
9100160667425
1031453203254
1112380571160
126119745272
132c73480c95
1417454498b4
15c414cc96e
hex752c1cb36

31453203254 has 64 divisors (see below), whose sum is σ = 52997829120. Its totient is φ = 13880160000.

The previous prime is 31453203251. The next prime is 31453203281. The reversal of 31453203254 is 45230235413.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31453203254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31453203251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34225007 + ... + 34225925.

It is an arithmetic number, because the mean of its divisors is an integer number (828091080).

Almost surely, 231453203254 is an apocalyptic number.

31453203254 is a deficient number, since it is larger than the sum of its proper divisors (21544625866).

31453203254 is a wasteful number, since it uses less digits than its factorization.

31453203254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 31453203254 its reverse (45230235413), we get a palindrome (76683438667).

The spelling of 31453203254 in words is "thirty-one billion, four hundred fifty-three million, two hundred three thousand, two hundred fifty-four".

Divisors: 1 2 11 22 73 101 146 202 211 422 803 919 1111 1606 1838 2222 2321 4642 7373 10109 14746 15403 20218 21311 30806 42622 67087 81103 92819 134174 162206 169433 185638 193909 234421 338866 387818 468842 737957 1021009 1475914 1555703 2042018 2132999 3111406 4265998 6775787 13551574 14155357 17112733 19584809 28310714 34225466 39169618 74533657 149067314 155708927 215432899 311417854 430865798 1429691057 2859382114 15726601627 31453203254