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145051004 = 22717304729
BaseRepresentation
bin10001010010101…
…00110101111100
3101002221100120102
420221110311330
5244113113004
622220540232
73410625140
oct1051246574
9332840512
10145051004
1174971a6a
12406b1678
13240883c7
141539b220
15cb0311e
hex8a54d7c

145051004 has 24 divisors (see below), whose sum is σ = 307167840. Its totient is φ = 58507776.

The previous prime is 145050991. The next prime is 145051007. The reversal of 145051004 is 400150541.

145051004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1450510042 = 42079587522816032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145051007) 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, 151889 + ... + 152840.

It is an arithmetic number, because the mean of its divisors is an integer number (12798660).

Almost surely, 2145051004 is an apocalyptic number.

145051004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145051004 is an abundant number, since it is smaller than the sum of its proper divisors (162116836).

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

145051004 is a wasteful number, since it uses less digits than its factorization.

145051004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304757 (or 304755 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 145051004 is about 12043.7122184151. The cubic root of 145051004 is about 525.4203786480.

The spelling of 145051004 in words is "one hundred forty-five million, fifty-one thousand, four".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 304729 609458 1218916 2133103 4266206 5180393 8532412 10360786 20721572 36262751 72525502 145051004