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145020888 = 23332329191
BaseRepresentation
bin10001010010011…
…01011111011000
3101002212211021000
420221031133120
5244111132023
622220145000
73410441265
oct1051153730
9332784230
10145020888
1174951381
1240698160
132407779c
141539026c
15cae9243
hex8a4d7d8

145020888 has 64 divisors (see below), whose sum is σ = 420364800. Its totient is φ = 46236960.

The previous prime is 145020839. The next prime is 145020893. The reversal of 145020888 is 888020541.

145020888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9628 + ... + 19563.

It is an arithmetic number, because the mean of its divisors is an integer number (6568200).

Almost surely, 2145020888 is an apocalyptic number.

145020888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

145020888 is an abundant number, since it is smaller than the sum of its proper divisors (275343912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145020888 is a wasteful number, since it uses less digits than its factorization.

145020888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29229 (or 29219 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 145020888 is about 12042.4618745504. The cubic root of 145020888 is about 525.3840129216.

The spelling of 145020888 in words is "one hundred forty-five million, twenty thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 23 24 27 36 46 54 69 72 92 108 138 184 207 216 276 414 552 621 828 1242 1656 2484 4968 29191 58382 87573 116764 175146 233528 262719 350292 525438 671393 700584 788157 1050876 1342786 1576314 2014179 2101752 2685572 3152628 4028358 5371144 6042537 6305256 8056716 12085074 16113432 18127611 24170148 36255222 48340296 72510444 145020888