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145087190 = 25104913831
BaseRepresentation
bin10001010010111…
…01101011010110
3101010000012012122
420221131223112
5244120242230
622221415542
73411135503
oct1051355326
9333005178
10145087190
1174997176
124070a5b2
132409ba11
14153aa4aa
15cb0dbe5
hex8a5dad6

145087190 has 16 divisors (see below), whose sum is σ = 261424800. Its totient is φ = 57975360.

The previous prime is 145087181. The next prime is 145087253. The reversal of 145087190 is 91780541.

It is a super-2 number, since 2×1450871902 = 42100585404192200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145087190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3575 + ... + 17405.

It is an arithmetic number, because the mean of its divisors is an integer number (16339050).

Almost surely, 2145087190 is an apocalyptic number.

145087190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145087190 is a deficient number, since it is larger than the sum of its proper divisors (116337610).

145087190 is a wasteful number, since it uses less digits than its factorization.

145087190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14887.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 145087190 is about 12045.2144024090. The cubic root of 145087190 is about 525.4640673746.

The spelling of 145087190 in words is "one hundred forty-five million, eighty-seven thousand, one hundred ninety".

Divisors: 1 2 5 10 1049 2098 5245 10490 13831 27662 69155 138310 14508719 29017438 72543595 145087190