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141620437 = 7241157449
BaseRepresentation
bin10000111000011…
…11010011010101
3100212111001201101
420130033103111
5242223323222
622015230101
73336516400
oct1034172325
9325431641
10141620437
1172a39592
123b518331
1323456a9a
1414b46d37
15c676927
hex870f4d5

141620437 has 24 divisors (see below), whose sum is σ = 170213400. Its totient is φ = 117411840.

The previous prime is 141620411. The next prime is 141620441. The reversal of 141620437 is 734026141.

141620437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 509796 + 141110641 = 714^2 + 11879^2 .

It is not a de Polignac number, because 141620437 - 27 = 141620309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141623437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 315189 + ... + 315637.

It is an arithmetic number, because the mean of its divisors is an integer number (7092225).

Almost surely, 2141620437 is an apocalyptic number.

It is an amenable number.

141620437 is a deficient number, since it is larger than the sum of its proper divisors (28592963).

141620437 is a wasteful number, since it uses less digits than its factorization.

141620437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 141620437 is about 11900.4385213319. The cubic root of 141620437 is about 521.2450895991.

Adding to 141620437 its reverse (734026141), we get a palindrome (875646578).

The spelling of 141620437 in words is "one hundred forty-one million, six hundred twenty thousand, four hundred thirty-seven".

Divisors: 1 7 41 49 157 287 449 1099 2009 3143 6437 7693 18409 22001 45059 70493 128863 315413 493451 902041 2890213 3454157 20231491 141620437