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42797952 = 273297383
BaseRepresentation
bin1010001101000…
…0101110000000
32222112100202100
42203100232000
541424013302
64125150400
71026530241
oct243205600
988470670
1042797952
112218180a
12123bb400
138b36242
145980cc8
153b55d1c
hex28d0b80

42797952 has 96 divisors (see below), whose sum is σ = 124750080. Its totient is φ = 14082048.

The previous prime is 42797947. The next prime is 42797971. The reversal of 42797952 is 25979724.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 42797898 and 42797907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111553 + ... + 111935.

It is an arithmetic number, because the mean of its divisors is an integer number (1299480).

Almost surely, 242797952 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 42797952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62375040).

42797952 is an abundant number, since it is smaller than the sum of its proper divisors (81952128).

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

42797952 is a wasteful number, since it uses less digits than its factorization.

42797952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 485 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 42797952 is about 6542.0143686788. The cubic root of 42797952 is about 349.7902198671.

The spelling of 42797952 in words is "forty-two million, seven hundred ninety-seven thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 97 128 144 192 194 288 291 383 384 388 576 582 766 776 873 1149 1152 1164 1532 1552 1746 2298 2328 3064 3104 3447 3492 4596 4656 6128 6208 6894 6984 9192 9312 12256 12416 13788 13968 18384 18624 24512 27576 27936 36768 37151 37248 49024 55152 55872 73536 74302 110304 111453 111744 147072 148604 220608 222906 297208 334359 441216 445812 594416 668718 891624 1188832 1337436 1783248 2377664 2674872 3566496 4755328 5349744 7132992 10699488 14265984 21398976 42797952