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123878496 = 2537832221
BaseRepresentation
bin1110110001000…
…11110001100000
322122002200100110
413120203301200
5223203102441
620143051320
73032643540
oct730436140
9278080313
10123878496
1163a20825
12355a0b40
131c8843b1
1412649320
15ad1eb16
hex7623c60

123878496 has 96 divisors (see below), whose sum is σ = 376282368. Its totient is φ = 34951680.

The previous prime is 123878407. The next prime is 123878497. The reversal of 123878496 is 694878321.

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

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123878497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54666 + ... + 56886.

It is an arithmetic number, because the mean of its divisors is an integer number (3919608).

Almost surely, 2123878496 is an apocalyptic number.

123878496 is a gapful number since it is divisible by the number (16) 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 123878496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188141184).

123878496 is an abundant number, since it is smaller than the sum of its proper divisors (252403872).

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

123878496 is a wasteful number, since it uses less digits than its factorization.

123878496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324 (or 2316 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 123878496 is about 11130.0716978823. The cubic root of 123878496 is about 498.5001668328.

The spelling of 123878496 in words is "one hundred twenty-three million, eight hundred seventy-eight thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 83 84 96 112 166 168 224 249 332 336 498 581 664 672 996 1162 1328 1743 1992 2221 2324 2656 3486 3984 4442 4648 6663 6972 7968 8884 9296 13326 13944 15547 17768 18592 26652 27888 31094 35536 46641 53304 55776 62188 71072 93282 106608 124376 184343 186564 213216 248752 368686 373128 497504 553029 737372 746256 1106058 1290401 1474744 1492512 2212116 2580802 2949488 3871203 4424232 5161604 5898976 7742406 8848464 10323208 15484812 17696928 20646416 30969624 41292832 61939248 123878496