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49272678 = 23371337271
BaseRepresentation
bin1011101111110…
…1011101100110
310102201022102000
42323331131212
5100103211203
64520030130
71135545060
oct273753546
9112638360
1049272678
11258a4324
1214602346
13a292340
146788730
1544d44a3
hex2efd766

49272678 has 128 divisors (see below), whose sum is σ = 138915840. Its totient is φ = 12597120.

The previous prime is 49272677. The next prime is 49272697. The reversal of 49272678 is 87627294.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49272673) 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, 181683 + ... + 181953.

It is an arithmetic number, because the mean of its divisors is an integer number (1085280).

Almost surely, 249272678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49272678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69457920).

49272678 is an abundant number, since it is smaller than the sum of its proper divisors (89643162).

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

49272678 is a wasteful number, since it uses less digits than its factorization.

49272678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 333 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 49272678 is about 7019.4499784527. The cubic root of 49272678 is about 366.6080995529.

It can be divided in two parts, 492726 and 78, that added together give a square (492804 = 7022).

The spelling of 49272678 in words is "forty-nine million, two hundred seventy-two thousand, six hundred seventy-eight".

Divisors: 1 2 3 6 7 9 13 14 18 21 26 27 37 39 42 54 63 74 78 91 111 117 126 182 189 222 234 259 271 273 333 351 378 481 518 542 546 666 702 777 813 819 962 999 1443 1554 1626 1638 1897 1998 2331 2439 2457 2886 3367 3523 3794 4329 4662 4878 4914 5691 6734 6993 7046 7317 8658 10027 10101 10569 11382 12987 13986 14634 17073 20054 20202 21138 24661 25974 30081 30303 31707 34146 49322 51219 60162 60606 63414 70189 73983 90243 90909 95121 102438 130351 140378 147966 180486 181818 190242 210567 221949 260702 270729 391053 421134 443898 541458 631701 665847 782106 912457 1173159 1263402 1331694 1824914 1895103 2346318 2737371 3519477 3790206 5474742 7038954 8212113 16424226 24636339 49272678