Search a number
-
+
88989057 = 336171761
BaseRepresentation
bin1010100110111…
…01110110000001
320012110010001000
411103131312001
5140240122212
612455202213
72130252213
oct523356601
9205403030
1088989057
1146260883
1225976369
1315589a61
14bb665b3
157c2c1dc
hex54ddd81

88989057 has 32 divisors (see below), whose sum is σ = 136062720. Its totient is φ = 57456000.

The previous prime is 88989049. The next prime is 88989071. The reversal of 88989057 is 75098988.

It is not a de Polignac number, because 88989057 - 23 = 88989049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 88988994 and 88989012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88989007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116557 + ... + 117317.

It is an arithmetic number, because the mean of its divisors is an integer number (4251960).

Almost surely, 288989057 is an apocalyptic number.

It is an amenable number.

88989057 is a deficient number, since it is larger than the sum of its proper divisors (47073663).

88989057 is a wasteful number, since it uses less digits than its factorization.

88989057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The square root of 88989057 is about 9433.4011363877. The cubic root of 88989057 is about 446.4562100423.

It can be divided in two parts, 8898 and 9057, that added together give a triangular number (17955 = T189).

The spelling of 88989057 in words is "eighty-eight million, nine hundred eighty-nine thousand, fifty-seven".

Divisors: 1 3 9 27 61 71 183 213 549 639 761 1647 1917 2283 4331 6849 12993 20547 38979 46421 54031 116937 139263 162093 417789 486279 1253367 1458837 3295891 9887673 29663019 88989057