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142121237377 = 7101919924469
BaseRepresentation
bin1000010001011100010…
…1011111101110000001
3111120211200011220101111
42010113011133232001
54312031014044002
6145142315203321
713160616404560
oct2042705375601
9446750156344
10142121237377
1155300808189
1223664146541
131052c1a7542
146c43245bd7
153a6c0813d7
hex211715fb81

142121237377 has 8 divisors (see below), whose sum is σ = 162583675200. Its totient is φ = 121698650544.

The previous prime is 142121237317. The next prime is 142121237459. The reversal of 142121237377 is 773732121241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142121237377 - 27 = 142121237249 is a prime.

It is a super-2 number, since 2×1421212373772 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142121237317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9955102 + ... + 9969367.

It is an arithmetic number, because the mean of its divisors is an integer number (20322959400).

Almost surely, 2142121237377 is an apocalyptic number.

It is an amenable number.

142121237377 is a deficient number, since it is larger than the sum of its proper divisors (20462437823).

142121237377 is a wasteful number, since it uses less digits than its factorization.

142121237377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19925495.

The product of its digits is 98784, while the sum is 40.

The spelling of 142121237377 in words is "one hundred forty-two billion, one hundred twenty-one million, two hundred thirty-seven thousand, three hundred seventy-seven".

Divisors: 1 7 1019 7133 19924469 139471283 20303033911 142121237377