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145455030 = 23257232983
BaseRepresentation
bin10001010101101…
…11011110110110
3101010200212210100
420222313132312
5244214030110
622233334530
73414230100
oct1052673666
9333625710
10145455030
1175118576
1240867446
132419a286
1415464570
15cb82bc0
hex8ab77b6

145455030 has 72 divisors (see below), whose sum is σ = 439940592. Its totient is φ = 33245856.

The previous prime is 145454999. The next prime is 145455031. The reversal of 145455030 is 30554541.

It is a junction number, because it is equal to n+sod(n) for n = 145454985 and 145455003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145455031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12082 + ... + 20901.

It is an arithmetic number, because the mean of its divisors is an integer number (6110286).

Almost surely, 2145455030 is an apocalyptic number.

145455030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145455030 is an abundant number, since it is smaller than the sum of its proper divisors (294485562).

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

145455030 is a wasteful number, since it uses less digits than its factorization.

145455030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33010 (or 33000 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 145455030 is about 12060.4738712871. The cubic root of 145455030 is about 525.9077628413.

The spelling of 145455030 in words is "one hundred forty-five million, four hundred fifty-five thousand, thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 49 63 70 90 98 105 126 147 210 245 294 315 441 490 630 735 882 1470 2205 4410 32983 65966 98949 164915 197898 230881 296847 329830 461762 494745 593694 692643 989490 1154405 1385286 1484235 1616167 2077929 2308810 2968470 3232334 3463215 4155858 4848501 6926430 8080835 9697002 10389645 14545503 16161670 20779290 24242505 29091006 48485010 72727515 145455030