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142615472252 = 2211109229129853
BaseRepresentation
bin1000010011010010001…
…0110110100001111100
3111122010010011122011212
42010310202312201330
54314034030103002
6145303332303552
713206100340561
oct2046442664174
9448103148155
10142615472252
1155534797160
1223781771bb8
13105aa6c1506
146c8cb3a868
153a9a65b352
hex21348b687c

142615472252 has 48 divisors (see below), whose sum is σ = 275965720800. Its totient is φ = 63949512960.

The previous prime is 142615472249. The next prime is 142615472257. The reversal of 142615472252 is 252274516241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142615472257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1033358 + ... + 1163210.

It is an arithmetic number, because the mean of its divisors is an integer number (5749285850).

Almost surely, 2142615472252 is an apocalyptic number.

It is an amenable number.

142615472252 is a deficient number, since it is larger than the sum of its proper divisors (133350248548).

142615472252 is a wasteful number, since it uses less digits than its factorization.

142615472252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130206 (or 130204 counting only the distinct ones).

The product of its digits is 268800, while the sum is 41.

Adding to 142615472252 its reverse (252274516241), we get a palindrome (394889988493).

The spelling of 142615472252 in words is "one hundred forty-two billion, six hundred fifteen million, four hundred seventy-two thousand, two hundred fifty-two".

Divisors: 1 2 4 11 22 44 109 218 229 436 458 916 1199 2398 2519 4796 5038 10076 24961 49922 99844 129853 259706 274571 519412 549142 1098284 1428383 2856766 5713532 14153977 28307954 29736337 56615908 59472674 118945348 155693747 311387494 327099707 622774988 654199414 1308398828 3241260733 6482521466 12965042932 35653868063 71307736126 142615472252