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61354560426 = 23611992633203
BaseRepresentation
bin111001001001000001…
…000100101110101010
312212100220102121022220
4321021001010232222
52001123231413201
644104053054510
74301265105315
oct711101045652
9185326377286
1061354560426
1124025060395
12ba83627436
135a2a289233
142d8073797c
1518e161e036
hexe49044baa

61354560426 has 64 divisors (see below), whose sum is σ = 125863372800. Its totient is φ = 19932834240.

The previous prime is 61354560403. The next prime is 61354560427. The reversal of 61354560426 is 62406545316.

It is not an unprimeable number, because it can be changed into a prime (61354560427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19153741 + ... + 19156943.

It is an arithmetic number, because the mean of its divisors is an integer number (1966615200).

Almost surely, 261354560426 is an apocalyptic number.

61354560426 is an abundant number, since it is smaller than the sum of its proper divisors (64508812374).

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

61354560426 is a wasteful number, since it uses less digits than its factorization.

61354560426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 61354560426 in words is "sixty-one billion, three hundred fifty-four million, five hundred sixty thousand, four hundred twenty-six".

Divisors: 1 2 3 6 61 122 183 199 263 366 398 526 597 789 1194 1578 3203 6406 9609 12139 16043 19218 24278 32086 36417 48129 52337 72834 96258 104674 157011 195383 314022 390766 586149 637397 842389 1172298 1274794 1684778 1912191 2527167 3192557 3824382 5054334 6385114 9577671 19155342 38881217 51385729 77762434 102771458 116643651 154157187 167635411 233287302 308314374 335270822 502906233 1005812466 10225760071 20451520142 30677280213 61354560426