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149207800 = 23527197541
BaseRepresentation
bin10001110010010…
…11101011111000
3101101202112121211
420321023223320
5301144122200
622450012504
73461150110
oct1071135370
9341675554
10149207800
1177251035
1241b77134
1324bb2451
1415b60040
15d174aba
hex8e4baf8

149207800 has 96 divisors (see below), whose sum is σ = 399215520. Its totient is φ = 50803200.

The previous prime is 149207797. The next prime is 149207801. The reversal of 149207800 is 8702941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149207801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 275530 + ... + 276070.

It is an arithmetic number, because the mean of its divisors is an integer number (4158495).

Almost surely, 2149207800 is an apocalyptic number.

149207800 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 149207800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199607760).

149207800 is an abundant number, since it is smaller than the sum of its proper divisors (250007720).

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

149207800 is a wasteful number, since it uses less digits than its factorization.

149207800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 149207800 is about 12215.0644697439. The cubic root of 149207800 is about 530.3922573786.

The spelling of 149207800 in words is "one hundred forty-nine million, two hundred seven thousand, eight hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 197 200 280 350 394 541 700 788 985 1082 1379 1400 1576 1970 2164 2705 2758 3787 3940 4328 4925 5410 5516 6895 7574 7880 9850 10820 11032 13525 13790 15148 18935 19700 21640 27050 27580 30296 34475 37870 39400 54100 55160 68950 75740 94675 106577 108200 137900 151480 189350 213154 275800 378700 426308 532885 746039 757400 852616 1065770 1492078 2131540 2664425 2984156 3730195 4263080 5328850 5968312 7460390 10657700 14920780 18650975 21315400 29841560 37301950 74603900 149207800