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73434960 = 24325293517
BaseRepresentation
bin1000110000010…
…00011101010000
312010011212211100
410120020131100
5122244404320
611141544400
71551121044
oct430103520
9163155740
1073434960
11384a7855
1220715100
13122a2151
149a78024
1566a8790
hex4608750

73434960 has 120 divisors (see below), whose sum is σ = 255195720. Its totient is φ = 18902016.

The previous prime is 73434941. The next prime is 73434967. The reversal of 73434960 is 6943437.

It can be written as a sum of positive squares in 4 ways, for example, as 25160256 + 48274704 = 5016^2 + 6948^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73434967) 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, 19122 + ... + 22638.

It is an arithmetic number, because the mean of its divisors is an integer number (2126631).

Almost surely, 273434960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73434960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127597860).

73434960 is an abundant number, since it is smaller than the sum of its proper divisors (181760760).

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

73434960 is a wasteful number, since it uses less digits than its factorization.

73434960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565 (or 3556 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 73434960 is about 8569.4200503885. The cubic root of 73434960 is about 418.7623428455.

The spelling of 73434960 in words is "seventy-three million, four hundred thirty-four thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 29 30 36 40 45 48 58 60 72 80 87 90 116 120 144 145 174 180 232 240 261 290 348 360 435 464 522 580 696 720 870 1044 1160 1305 1392 1740 2088 2320 2610 3480 3517 4176 5220 6960 7034 10440 10551 14068 17585 20880 21102 28136 31653 35170 42204 52755 56272 63306 70340 84408 101993 105510 126612 140680 158265 168816 203986 211020 253224 281360 305979 316530 407972 422040 506448 509965 611958 633060 815944 844080 917937 1019930 1223916 1266120 1529895 1631888 1835874 2039860 2447832 2532240 3059790 3671748 4079720 4589685 4895664 6119580 7343496 8159440 9179370 12239160 14686992 18358740 24478320 36717480 73434960