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31204430023552 = 2710710920902393
BaseRepresentation
bin1110001100001010110001…
…11101111000101110000000
311002111010002101021101022221
413012011120331320232000
513042223133041223202
6150211041154340424
76400305602564632
oct706053075705600
9132433071241287
1031204430023552
119a407a7283435
1235bb76458a714
13145474676c866
1479c433da6a52
15391a7387e037
hex1c6158f78b80

31204430023552 has 64 divisors (see below), whose sum is σ = 63321712383600. Its totient is φ = 15314597351424.

The previous prime is 31204430023531. The next prime is 31204430023583. The reversal of 31204430023552 is 25532003440213.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8958333 + ... + 11944060.

Almost surely, 231204430023552 is an apocalyptic number.

31204430023552 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31204430023552 is an abundant number, since it is smaller than the sum of its proper divisors (32117282360048).

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

31204430023552 is a wasteful number, since it uses less digits than its factorization.

31204430023552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20902623 (or 20902611 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 31204430023552 its reverse (25532003440213), we get a palindrome (56736433463765).

The spelling of 31204430023552 in words is "thirty-one trillion, two hundred four billion, four hundred thirty million, twenty-three thousand, five hundred fifty-two".

Divisors: 1 2 4 8 16 32 64 107 109 128 214 218 428 436 856 872 1712 1744 3424 3488 6848 6976 11663 13696 13952 23326 46652 93304 186608 373216 746432 1492864 20902393 41804786 83609572 167219144 334438288 668876576 1337753152 2236556051 2278360837 2675506304 4473112102 4556721674 8946224204 9113443348 17892448408 18226886696 35784896816 36453773392 71569793632 72907546784 143139587264 145815093568 243784609559 286279174528 291630187136 487569219118 975138438236 1950276876472 3900553752944 7801107505888 15602215011776 31204430023552