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145650680 = 2357571911
BaseRepresentation
bin10001010111001…
…11001111111000
3101011001211011122
420223213033320
5244241310210
622241444412
73416003360
oct1053471770
9334054148
10145650680
117524156a
1240940708
1324238346
14154b59a0
15cbc0b55
hex8ae73f8

145650680 has 64 divisors (see below), whose sum is σ = 375598080. Its totient is φ = 49795200.

The previous prime is 145650677. The next prime is 145650707. The reversal of 145650680 is 86056541.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 145650680.

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, 159425 + ... + 160335.

It is an arithmetic number, because the mean of its divisors is an integer number (5868720).

Almost surely, 2145650680 is an apocalyptic number.

145650680 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 145650680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187799040).

145650680 is an abundant number, since it is smaller than the sum of its proper divisors (229947400).

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

145650680 is a wasteful number, since it uses less digits than its factorization.

145650680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500 (or 1496 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 145650680 is about 12068.5823525383. The cubic root of 145650680 is about 526.1434548267.

The spelling of 145650680 in words is "one hundred forty-five million, six hundred fifty thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 571 911 1142 1822 2284 2855 3644 3997 4555 4568 5710 6377 7288 7994 9110 11420 12754 15988 18220 19985 22840 25508 31885 31976 36440 39970 51016 63770 79940 127540 159880 255080 520181 1040362 2080724 2600905 3641267 4161448 5201810 7282534 10403620 14565068 18206335 20807240 29130136 36412670 72825340 145650680