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152232223521 = 3723315180587
BaseRepresentation
bin1000110111000110111…
…1110110001100100001
3112112221022210012212210
42031301233312030201
54443232422123041
6153533504512333
713666312356360
oct2156157661441
9475838705783
10152232223521
115961a137784
122560631b6a9
1311480b83b91
1475220197d7
153e5ea64016
hex2371bf6321

152232223521 has 16 divisors (see below), whose sum is σ = 242058691584. Its totient is φ = 83207674704.

The previous prime is 152232223519. The next prime is 152232223531. The reversal of 152232223521 is 125322232251.

It is a happy number.

It is not a de Polignac number, because 152232223521 - 21 = 152232223519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152232223531) 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, 157589811 + ... + 157590776.

It is an arithmetic number, because the mean of its divisors is an integer number (15128668224).

Almost surely, 2152232223521 is an apocalyptic number.

It is an amenable number.

152232223521 is a deficient number, since it is larger than the sum of its proper divisors (89826468063).

152232223521 is a wasteful number, since it uses less digits than its factorization.

152232223521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315180620.

The product of its digits is 14400, while the sum is 30.

Adding to 152232223521 its reverse (125322232251), we get a palindrome (277554455772).

The spelling of 152232223521 in words is "one hundred fifty-two billion, two hundred thirty-two million, two hundred twenty-three thousand, five hundred twenty-one".

Divisors: 1 3 7 21 23 69 161 483 315180587 945541761 2206264109 6618792327 7249153501 21747460503 50744074507 152232223521