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30920606192 = 247538397647
BaseRepresentation
bin11100110011000000…
…110000000111110000
32221210220120112122202
4130303000300013300
51001311133344232
622112115522332
72143145546630
oct346300600760
987726515582
1030920606192
11121279700a3
125bab2b93a8
132bba024aa8
1416d480a6c0
15c0e876162
hex7330301f0

30920606192 has 160 divisors (see below), whose sum is σ = 71437427712. Its totient is φ = 12692938752.

The previous prime is 30920606191. The next prime is 30920606201. The reversal of 30920606192 is 29160602903.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30920606191) 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, 47790413 + ... + 47791059.

Almost surely, 230920606192 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 30920606192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35718713856).

30920606192 is an abundant number, since it is smaller than the sum of its proper divisors (40516821520).

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

30920606192 is a wasteful number, since it uses less digits than its factorization.

30920606192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 889 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The spelling of 30920606192 in words is "thirty billion, nine hundred twenty million, six hundred six thousand, one hundred ninety-two".

Divisors: 1 2 4 7 8 14 16 28 53 56 83 97 106 112 166 194 212 332 371 388 424 581 647 664 679 742 776 848 1162 1294 1328 1358 1484 1552 2324 2588 2716 2968 4399 4529 4648 5141 5176 5432 5936 8051 8798 9058 9296 10282 10352 10864 16102 17596 18116 20564 30793 32204 34291 35192 35987 36232 41128 53701 56357 61586 62759 64408 68582 70384 71974 72464 82256 107402 112714 123172 125518 128816 137164 143948 214804 225428 240037 246344 251036 274328 287896 375907 426703 429608 439313 450856 480074 492688 502072 548656 575792 751814 853406 859216 878626 901712 960148 1004144 1503628 1706812 1757252 1920296 2846153 2986921 3007256 3326227 3413624 3514504 3840592 5208997 5692306 5973842 6014512 6652454 6827248 7029008 10417994 11384612 11947684 13304908 19923071 20835988 22769224 23283589 23895368 26609816 36462979 39846142 41671976 45538448 46567178 47790736 53219632 72925958 79692284 83343952 93134356 145851916 159384568 186268712 276076841 291703832 318769136 372537424 552153682 583407664 1104307364 1932537887 2208614728 3865075774 4417229456 7730151548 15460303096 30920606192