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145055534 = 2137970621
BaseRepresentation
bin10001010010101…
…01111100101110
3101002221120210012
420221111330232
5244113234114
622221013222
73410644301
oct1051257456
9332846705
10145055534
1174975408
12406b4212
132408a4a0
141539cb38
15cb0463e
hex8a55f2e

145055534 has 16 divisors (see below), whose sum is σ = 237289920. Its totient is φ = 66100320.

The previous prime is 145055527. The next prime is 145055539. The reversal of 145055534 is 435550541.

145055534 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1450555343 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 145055534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145055539) 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, 33257 + ... + 37364.

It is an arithmetic number, because the mean of its divisors is an integer number (14830620).

Almost surely, 2145055534 is an apocalyptic number.

145055534 is a deficient number, since it is larger than the sum of its proper divisors (92234386).

145055534 is a wasteful number, since it uses less digits than its factorization.

145055534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70715.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 145055534 is about 12043.9002818854. The cubic root of 145055534 is about 525.4258482862.

The spelling of 145055534 in words is "one hundred forty-five million, fifty-five thousand, five hundred thirty-four".

Divisors: 1 2 13 26 79 158 1027 2054 70621 141242 918073 1836146 5579059 11158118 72527767 145055534