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145350040 = 23511259509
BaseRepresentation
bin10001010100111…
…01110110011000
3101010111112202211
420222131312120
5244202200130
622231204504
73413312023
oct1052356630
9333445684
10145350040
1175056700
1240816734
1324161554
14154381ba
15cb61a2a
hex8a9dd98

145350040 has 96 divisors (see below), whose sum is σ = 366282000. Its totient is φ = 51856640.

The previous prime is 145349989. The next prime is 145350061. The reversal of 145350040 is 40053541.

145350040 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 2×1453500402 = 42253268256003200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 145349993 and 145350020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285306 + ... + 285814.

Almost surely, 2145350040 is an apocalyptic number.

145350040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145350040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183141000).

145350040 is an abundant number, since it is smaller than the sum of its proper divisors (220931960).

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

145350040 is a wasteful number, since it uses less digits than its factorization.

145350040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 145350040 is about 12056.1204373546. The cubic root of 145350040 is about 525.7811983030.

The spelling of 145350040 in words is "one hundred forty-five million, three hundred fifty thousand, forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 59 88 110 118 121 220 236 242 295 440 472 484 509 590 605 649 968 1018 1180 1210 1298 2036 2360 2420 2545 2596 3245 4072 4840 5090 5192 5599 6490 7139 10180 11198 12980 14278 20360 22396 25960 27995 28556 30031 35695 44792 55990 57112 60062 61589 71390 111980 120124 123178 142780 150155 223960 240248 246356 285560 300310 307945 330341 492712 600620 615890 660682 1201240 1231780 1321364 1651705 2463560 2642728 3303410 3633751 6606820 7267502 13213640 14535004 18168755 29070008 36337510 72675020 145350040