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672995250 = 23353179557
BaseRepresentation
bin101000000111010…
…001011110110010
31201220100200221000
4220013101132302
52334241322000
6150440342430
722451236164
oct5007213662
91656320830
10672995250
11315985324
12169474a16
13a9575855
1465548934
153e13b000
hex281d17b2

672995250 has 128 divisors (see below), whose sum is σ = 1880236800. Its totient is φ = 178142400.

The previous prime is 672995243. The next prime is 672995251. The reversal of 672995250 is 52599276.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 672995196 and 672995205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672995251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1207972 + ... + 1208528.

It is an arithmetic number, because the mean of its divisors is an integer number (14689350).

Almost surely, 2672995250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672995250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940118400).

672995250 is an abundant number, since it is smaller than the sum of its proper divisors (1207241550).

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

672995250 is a wasteful number, since it uses less digits than its factorization.

672995250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 672995250 is about 25942.1519924620. The cubic root of 672995250 is about 876.3360270253.

The spelling of 672995250 in words is "six hundred seventy-two million, nine hundred ninety-five thousand, two hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 75 90 125 135 150 179 225 250 270 358 375 450 537 557 675 750 895 1074 1114 1125 1350 1611 1671 1790 2250 2685 2785 3222 3342 3375 4475 4833 5013 5370 5570 6750 8055 8355 8950 9666 10026 13425 13925 15039 16110 16710 22375 24165 25065 26850 27850 30078 40275 41775 44750 48330 50130 67125 69625 75195 80550 83550 99703 120825 125325 134250 139250 150390 199406 201375 208875 241650 250650 299109 375975 402750 417750 498515 598218 604125 626625 751950 897327 997030 1208250 1253250 1495545 1794654 1879875 2492575 2691981 2991090 3759750 4486635 4985150 5383962 7477725 8973270 12462875 13459905 14955450 22433175 24925750 26919810 37388625 44866350 67299525 74777250 112165875 134599050 224331750 336497625 672995250