Search a number
-
+
145210957 = 1743198647
BaseRepresentation
bin10001010011110…
…11111001001101
3101010020110222121
420221323321031
5244133222312
622224212541
73412162363
oct1051737115
9333213877
10145210957
1174a71161
124076a151
1324113158
14153dd633
15cb35707
hex8a7be4d

145210957 has 8 divisors (see below), whose sum is σ = 157329216. Its totient is φ = 133490112.

The previous prime is 145210931. The next prime is 145210973. The reversal of 145210957 is 759012541.

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 145210957 - 211 = 145208909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145210357) 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, 98593 + ... + 100054.

It is an arithmetic number, because the mean of its divisors is an integer number (19666152).

Almost surely, 2145210957 is an apocalyptic number.

145210957 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

145210957 is a deficient number, since it is larger than the sum of its proper divisors (12118259).

145210957 is a wasteful number, since it uses less digits than its factorization.

145210957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198707.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 145210957 is about 12050.3509077537. The cubic root of 145210957 is about 525.6134410655.

The spelling of 145210957 in words is "one hundred forty-five million, two hundred ten thousand, nine hundred fifty-seven".

Divisors: 1 17 43 731 198647 3376999 8541821 145210957