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31234215031124 = 2275358073624473
BaseRepresentation
bin1110001101000010010000…
…10010101011000101010100
311002120221222011000112112112
413012201020102223011110
513043220133021443444
6150232444510410152
76402411652144460
oct706411022530524
9132527864015475
1031234215031124
119a523a1124476
123605497500958
1314574b242b5b1
1479da5ba494a0
1539271868b69e
hex1c68484ab154

31234215031124 has 48 divisors (see below), whose sum is σ = 63658057655808. Its totient is φ = 13131259085568.

The previous prime is 31234215031079. The next prime is 31234215031127. The reversal of 31234215031124 is 42113051243213.

It is a happy number.

It is a super-2 number, since 2×312342150311242 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31234215031127) 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, 6805352 + ... + 10429824.

It is an arithmetic number, because the mean of its divisors is an integer number (1326209534496).

Almost surely, 231234215031124 is an apocalyptic number.

It is an amenable number.

31234215031124 is an abundant number, since it is smaller than the sum of its proper divisors (32423842624684).

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

31234215031124 is a wasteful number, since it uses less digits than its factorization.

31234215031124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3630344 (or 3630342 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 31234215031124 its reverse (42113051243213), we get a palindrome (73347266274337).

The spelling of 31234215031124 in words is "thirty-one trillion, two hundred thirty-four billion, two hundred fifteen million, thirty-one thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 53 106 212 371 742 1484 5807 11614 23228 40649 81298 162596 307771 615542 1231084 2154397 3624473 4308794 7248946 8617588 14497892 25371311 50742622 101485244 192097069 384194138 768388276 1344679483 2689358966 5378717932 21047314711 42094629422 84189258844 147331202977 294662405954 589324811908 1115507679683 2231015359366 4462030718732 7808553757781 15617107515562 31234215031124